1970 car radio

1970 car radio DEFAULT

The designer stereos available in today’s cars—be they luxury sedans or cheap sporty coupes—have 80 years of development behind them. Here’s a look at the landmark advancements in car radios that evolved into today’s iPod hookups and satellite radio.

1930: First Commercial In-Car Radio

The Galvin brothers’ expensive $130 unit (a Model A Deluxe coupe cost $540) was the first commercially successful car radio, and the first product to wear the Motorola name.

1952: First Radio With FM

AM was the undisputed king of the airwaves in 1952, but that didn’t stop Blaupunkt from introducing the first in-car FM radio.

1953: Becker Mexico Introduced

Becker’s iconic Mexico radio launched this year, arguably the first premium in-car radio. It had AM/FM and the first fully automatic station-search button.

1955: First “Music On Demand”

Starting in 1955, Chrysler offered a small turntable in its high-end cars, playing proprietary seven-inch records with about 45 minutes of music. It was a bust.

1963: First All-Transistor Radio

A number of manufacturers introduced transistors to their aftermarket car radios in the early 1960s, but Becker’s Monte Carlo was the first to be fully “solid state”—no vacuum tubes.

1965: First Eight-Track Tape Player

Predecessor to the cassette, the eight-track was a loser from the start and was dead by the early ’80s. Ford and Motorola jointly introduced in-car eight-track players this year.

1969: First Stereo

Becker’s Europa was the first in-car stereo setup, with the tuner amplifying two channels instead of one.

1970–1977: Cassette-Tape Players

The rollout of cassettes allowed for one of mankind’s greatest achievements: the mix tape. This development also heralded the creation of branded aftermarket cassette-tape players from Alpine and Pioneer, among others.

1982: Bose Becomes First Premium Stereo System

Bose and GM’s Delco teamed up to offer the first “designer” stereo system. Bose sank money into car-specific development; rather than just producing an expensive head unit, it was marketing the entire system to Oldsmobile, Buick, and Cadillac shoppers.

1985: First Factory-Installed In-Dash CD Player

While Sony had introduced an in-dash player the previous year, Becker’s Mexico Compact Disc was the first to be factory installed (in Benzes, of course).

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Sours: https://www.caranddriver.com/features/a15128476/the-history-of-car-radios/

A Brief History of the Car Radio

The head unit is, in many ways, the soul of car audio. Consoles have gone from simple monaural AM radios to sophisticated infotainment systems, with a number of bizarre blips and one-off projects in between.

Most head units still include an AM tuner, but eight-track tapes, cassettes, and other technologies have faded into history. Other technologies, such as the compact disc, would also disappear over the next few years. It may seem far-fetched, but the history of car radios is littered with abandoned technology that was once considered state of the art.

1930s: The First Commercial Head Units

Enthusiasts had already been finding creative ways to integrate radios into their cars for over a decade, but the first true car radios weren't introduced until the 1930s. Motorola offered one of the first, which retailed for around $130—about $$1,800 in today's money. Keep in mind that this was the era of the Model T, and you could buy an entire car for around two to three times the asking price of Motorola's first car radio.

1950s: AM Continues to Dominate

Head units dropped in price and increased in quality over the following decades, but they were still only capable of receiving AM broadcasts until the 1950s. That made sense because AM stations held a stranglehold on the market share at that point.

Blaupunkt sold the first AM/FM head unit in 1952, but it took a few decades for FM to really catch on. The first on-demand music system also appeared in the 1950s. At that point, we were still almost a decade away from eight tracks, and records were the dominant force in home audio. Record players aren't exactly the most shock-proof media invented, but that didn't stop Chrysler from putting one in their cars. Mopar introduced the very first record playing head unit in 1955. It didn't last long.

1960s: The Car Stereo Is Born

The 1960s saw the introduction of both eight-track tapes and car stereos. Up until that point, all car radios had used a single (mono) audio channel. Some had speakers in both the front and back that could be adjusted separately, but they still only had one channel.

Early stereos placed one channel on the front speakers and the other on the rear speakers, but systems that used the modern left and right format appeared soon after.

The eight-track format owes a lot to car head units. If it wasn't for car audio, the entire format probably would have floundered. Ford aggressively pushed the platform, and eventually competing manufacturers picked up the format as well.

1970s: Compact Cassettes Arrive on the Scene

The eight-track's days were numbered from the start, and the format was rapidly pushed out of the marketplace by the compact cassette. The first cassette head units showed up in the 1970s, outliving its predecessor by many years.

The first cassette deck head units were relatively hard on tapes, and Maxell based an ad campaign in the early 1980s on the concept that its tapes were hardy enough to stand up to the abuse. Everyone who ever put a cassette into an in-dash tape deck remembers the sinking feeling associated with the head unit "eating" a precious tape.

1980s: The Compact Disc Fails to Dislodge the Compact Cassette

The first CD head units showed up less than 10 years after the first tape decks, but adoption of the technology was much slower. CD players wouldn't become ubiquitous in head units until the late 1990s, and the technology coexisted with the compact cassette for more than two decades.

1990s: CD Players Become Dominant

CD players became increasingly popular in head units during the 1990s, and there were a few notable additions toward the tail end of the decade. Head units that were capable of reading CD-RWs and playing MP3 files eventually became available, and DVD functionality also appeared in some high-end vehicles and aftermarket head units.

2000s: Bluetooth and Infotainment Systems

During the first decade of the 21st century, head units gained the ability to interface with phones and other devices via Bluetooth. This technology was developed in 1994, but it was originally intended as a replacement for wired networks. In automotive applications, the technology allowed for hands-free calling and created a situation where a head unit could automatically mute itself during a phone conversation.

The accuracy of consumer GPS systems also improved during the first part of the decade, which led to an explosion in both OEM and aftermarket navigation systems. The first infotainment systems also started to appear, and some head units even offered built-in HDD storage.

The 2000s also saw the emergence and rising appeal of satellite radio.

2010s: The Death of the Cassette and What Comes Next

2011 marked the first year that manufacturers stopped offering cassette decks in new cars. The last car to roll off the line with an OEM cassette player was a 2010 Lexus SC 430. After about 30 years of service, the format was finally retired to make way for new technologies.

The CD player was the next format on the chopping block. Several OEMs stopped offering CD changers after the 2012 model year, and in-dash CD players are beginning to follow suit. So what comes next?

Most head units are now capable of playing music from mobile devices and even the cloud, and others can connect to internet services like Pandora. With mobiles devices that can connect to head units via USB or Bluetooth, the phone is beginning to stand in for old physical media.

Satellite radio, which saw explosive growth in the early 2000s, also suffered a declining user base throughout the decade.

Thanks for letting us know!

Sours: https://www.lifewire.com/brief-history-of-the-car-radio-534718
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Stock Restorations scroll down for pricing

Most Shops wont even perform restorations any longer- Joe's Classic Car Radio to the rescue!

Why Restore your stock radio?

1958 Corvette

Cruising in a classic car is a thrill thats hard to beat. Part of that enjoyment comes directly from the radio. The stock radio is an integral part of the cars interior and can add or detract value depending on the condition of that radio. Unfortunatley these radios are between 35 and 80 years old and in desperate need of restoring. At the very least, every classic car radio should have the Electrolytic capacitors replaced and the tuner cleaned/ relubed. Controls wear, component values drift and paint flakes off. But that sad old radio can be made to work like new again and look great while you are cruising.

Whats included in the Resto

Time takes its toll on everything, including your radio. Over time, wires become brittle, capacitors dry out, grease hardens, paint chips, fades and flakes off, screws and cases rust and tuners stick. For this reason EVERY radio we restore has all electrolytic capacitors and out of tolerance components replaced, replacement of vibrators and rectifiers with solid state replacements when available,test and replace (if needed) all tubes, precise alignment of all RF and IF circuits, cleaning, lube and alignment of the mechanical tuner, repair or replacement of Pots, switches coils and transformers and replace all brittle, pinched or damaged wires. Then we clean/polish all cosmetic parts, clean cases and repaint heat sinks, dial pointers, dial backgrounds, and masks. Whenever possible we save and re-attach or completely recreate original stickers and labels. Finally each radio is tested for a minimum of 72 hours before being sent back to you with a 1 YEAR WARRANTY. The goal of the restoration is to make the Radio function like new and look like a clean survivor radio.

Warranty

Every radio restored by Joe's Classic Car Radio is returned with a 1 year warranty. If your radio should fail to function in that time, We will repair it at no cost. The warranty covers all electronic and mechanical parts of the radio.

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Why Have "Joe's" restore your radio

There are many individuals and radio repair shops attempting to provide quick and cheap repairs. Most shops wont even bother with restorations any longer due to the increasingly difficult tash of finding or making replacement parts. While a cheap price may be inticing, these individuals and shops lack the necessary equipment and experience to provide a long lasting classic car radio restoration. We have the knowledge and technical capabilities to hand build and design replacement parts and we know what it takes to get the job done right. Dont risk yoru precious radio on a cheap repair! Send your radio for the best service available. Only from Joe's Classic Car Radio.

Having serviced, restored, redesigned and recreated thousandands of car radios, we spend the necessary time to give you a FIRST CLASS radio restoration and back it up with 1 YEAR WARRANTY. No other company takes the time to ensure a trouble free radio PERIOD!

Radio Restoration Price List

RESTORATION ONLY AVAILABLE FOR AMERICAN MADE CARS. European/ other analog radios can be converted only. Click here to see our CONVERSION page.

Price list is a general overview of common radios- if your radio is not listed, lease feel lfree to email us for a quote.

Restoration cost listed below do not include chrome plating or case plating, replacement knobs/Backrings or return shipping charge unless otherwise discussed and agreed. If you are needing plating services, please contact us for a quote. All listed costs are for restoring customers radio- If you do not have a radio to send for service, contact us to purchase a core radio for service.

 

BROKEN VOLUME/TUNING SHAFTS- Add $95.00 to cost.

 

AM Only Radio Restoration

Pre 1950-Contact for Cost- Please send picture of radio

1950- 1958= $495.00

1959- 1981= $325.00

Radio with built in speaker= Add $55.00

AM and AM/FM "Signal Seeking" Radio Restoration

Pre 1950-Contact for Cost- Please send picture of radio

1946- 1957= $595.00

1958- 1981= $525.00

Radio with built in speaker= Add $55.00

AM/FM MONO only Radio Restoration

1963- 1981= $395.00

AM/FM Stereo Radios WITHOUT multiplex unit Restoration

1963- 1981 MOST RADIOS= $495.00

1963- 1981 FORD RADIOS= $545.00 **HIGHLY RECOMMEND CONVERTING THESE RADIOS!!!

AM/FM Stereo Radios With multiplex unit Restoration

1963- 1981= $525.00

AM or AM/FM 8 track/Cassette Radio Restoration

1963- 1981= $595.00

Stand Alone Multiplex Restoration

1963- 1981= $325.00

Stand Alone 8 track Player Restoration

1963- 1981= $495.00

Reverb Unit Restoration

*Internal coils must be usable* 1963- 1981= $325.00

Payments

All sales and services can be paid for by credit card, Paypal or Check/Money order. After your radio/order is received, an Invoice will be emailed to you. All Invoices can be securely paid online using PAYPAL. You do NOT need a Paypal account to pay the invoice- your credit card can be used. All invoices must be paid before service will begin. If you are uncomfortable paying by online service, please contact us for options.

 Sours: https://www.joesclassiccarradio.com/Resto.html
Classic Car Stereos Product Showcase

Vintage Auto Radios

Classentials presents a selection of top quality vintage classic car auto radios to suit your classic car of the 1960s and 1970s. We specialize in the supply of original refurbished and fully serviced Blaupunkt, Becker, Grundig, Philips and other interesting auto radio brands with a period correct appearance. Our vintage radios are inspected, tested, serviced, refurbished, and, if necessary, repaired and / or overhauled to top condition by our radio specialists in the Netherlands and Germany.

All our radios come complete and ready to install, Blaupunkt radios come with the Classentials installation kit. All the presented radios are ready to be shipped immediately and they come with 18 months (1.5 years) warranty.

Nearly all our vintage original auto radios feature the FM channel and most of the 1965 -1982 models are MP3 and Bluetooth ready! With our De Luxe MP3 connection kits and De Luxe Bluetooth Modules you can connect your smartphone or other playback device to stream your own music and digital radio channels and Spotify music.

Latest News: See our radio stock list for the 100+ refurbished and serviced 1960 – 1980 models we have in stock, CLICK HERE.

Sours: https://www.classentials.com/product-categorie/motoring-accessories-autoradios-fog-spot-lamps/vintage-classic-car-auto-radio-autoradio-blaupunkt-becker/

Radio 1970 car

Car radios had been around for a few decades, but it was the 1970s when the car stereo became a high-tech chick magnet. Thanks to advances in technology and the advent of the 8-track, and also thanks to millions upon millions of Baby Boomers coming of age, the car stereo experienced a new age in the seventies.

If you wanted to get lucky with the ladies, you better make sure the Frampton Comes Alive 8-track is playing on the newest high fidelity sound system.  Each brand tried to appeal to the swingin’ seventies super stud: Pioneer introduced the “Eargasm”, Sparkomatic marketed toward the ultra-cool “Travelin’ Man”, Craig used Ringo Starr as a spokesman, and both Jensen and Clarion swore their stereos would get you laid.  So, let’s have a look at seventies (and early eighties) car stereo ads, each eagerly competing for the male market share…

 

Among the 84 reasons listed in this ad from 1979 – the “much beloved Eargasm poster” and “Bodysonic – car stereo you can feel in your bones”.

“For years you’ve been judging car high fidelity solely with your ears.  Now, thanks to Sparkomatic AcoustaTrac, you can judge car sound with your eyes!”

Make no mistake – these ads made it very clear to males that their car stereos would get you laid.

1981 Panasonic ad featuring Reggie Jackson

Not exactly sure why this girl is wrapped in cellophane, but it was 1981 and I’m sure cocaine played a role.

Sours: https://flashbak.com/selling-dashboard-disco-car-stereo-ads-1970s-394323/
How To Install An Awesome Classic Car Radio (VW Bug)

Vehicle audio

Entertainment electronics in cars

"Car radio" redirects here. For the Twenty One Pilots song, see Car Radio (song).

Vehicle audio is equipment installed in a car or other vehicle to provide in-car entertainment and information for the vehicle occupants. Until the 1950s it consisted of a simple AM radio. Additions since then have included FM radio (1952), 8-track tape players, cassette players, record players, CD players (1984), DVD players, Blu-ray players, navigation systems, Bluetooth telephone integration, and smartphone controllers like CarPlay and Android Auto. Once controlled from the dashboard with a few buttons, they can now be controlled by steering wheel controls and voice commands.

Initially implemented for listening to music and radio, vehicle audio is now part of car telematics, telecommunication, in-vehicle security, handsfree calling, navigation, and remote diagnostics systems. The same loudspeakers may also be used to minimize road and engine noise with active noise control, or they may be used to augment engine sounds, for instance making a smaller engine sound bigger.

History[edit]

Radio[edit]

1937 Philips Auto Radio. Weighing 24 kg and taking 8 litres of space, it was floor mounted with a wired remote control to be fitted to the dashboard.

In 1904, well before commercially viable technology for mobile radio was in place, Americaninventor and self-described "Father of Radio" Lee de Forest did some demonstration around a car radio at the 1904 Louisiana Purchase Exposition in St. Louis.[1]

Around 1920, vacuum tube technology had matured to the point where the availability of radio receivers made radio broadcasting viable.[2] A technical challenge was that the vacuum tubes in the radio receivers required 50 to 250 voltdirect current, but car batteries ran at 6V. Voltage was stepped up with a vibrator that provided a pulsating DC which could be converted to a higher voltage with a transformer, rectified, and filtered to create higher-voltage DC.

In 1924, Kelly's Motors in NSW, Australia, installed its first car radio.[3][4][5]

In 1930, the American Galvin Manufacturing Corporation marketed a Motorola branded radio receiver for $130.[6] It was expensive: the contemporary Ford Model A cost $540. A Plymouth sedan, "wired for Philco Transistone radio without extra cost," is advertised in Ladies' Home Journal in 1931. In 1932 in Germany the Blaupunkt AS 5 medium wave and longwave radio was marketed for 465 Reichsmark, about one third of the price of a small car. Because it took nearly 10 litres of space, it could not be located near the driver, and was operated via a steering wheel remote control.[7] In 1933 Crossley Motors offer a factory fitted car radio.[8] By the late 1930s, push button AM radios were considered a standard feature. In 1946, there were an estimated 9 million AM car radios in use.[9]

An FM receiver was offered by Blaupunkt in 1952. In 1953, Becker introduced the AM/FM Becker Mexico with a Variometer tuner, basically a station-search or scan function.[10]

In April 1955, the Chrysler Corporation announced that it was offering a Mopar model 914HR branded Philco all transistor car radio,[11] as a $150 option for its 1956 Chrysler and Imperial car models. Chrysler Corporation had decided to discontinue its all transistor car radio option at the end of 1956, due to it being too expensive, and replaced it with a cheaper hybrid (transistors and low voltage vacuum tubes) car radio for its new 1957 car models.[12] In 1963, Becker introduced the Monte Carlo, a tubeless solid state radio with no vacuum tubes.[10]

From 1974 to 2005, the Autofahrer-Rundfunk-Informationssystem was used by the German ARD network.[13] Developed jointly by the Institut für Rundfunktechnik and Blaupunkt,[14] it indicated the presence of traffic announcements through manipulation of the 57kHzsubcarrier of the station's FM signal.[15] ARI was replaced by the Radio Data System.[16]

In the 2010s, internet radio and satellite radio came into competition with FM radio. By this time some models were offering 5.1 surround sound. And the automobile head unit became increasingly important as a housing for front and backupdashcams, navis, and operating systems with multiple functions, such as Android Auto, CarPlay and MirrorLink. Latest models are coming equipped with features like Bluetooth technology along with HDMI port for better connectivity. Screen size varies from 5-inch to 7-inch for the double Din car stereos.[17]

The AM/FM radio combined with a CD player has remained a mainstay of car audio, despite being obsolescent in non-car applications.[18][19]

Most modern vehicle audio are now equipped with anti-theft system for protection purposes.

Physical media[edit]

Mobile players for physical media have been provided for vinyl records, 8-track tapes, cassette tapes, and compact discs.

Attempts at providing mobile play from media were first made with vinyl records, beginning in the 1950s. The first such player was offered by Chrysler as an option on 1956 Chrysler, Desoto, Dodge, and Plymouth cars. The player was developed by CBS Labs and played a limited selection of specially provided 7-inch discs at 16⅔ RPM. The unit was an expensive option and was dropped after two years. Cheaper options using commonly available 45 rpm records were made by RCA Victor (available only in 1961) and Norelco. All of these players required extra pressure on the needle to avoid skipping during vehicle movement, which caused accelerated wear on the records.[20]

In 1962, Muntz introduced the Wayfarer 4-track cartridge tape player. Celebrities, including Frank Sinatra, had these units installed in their cars.

In 1965, Ford and Motorola jointly introduced the in-car 8-track tape player as optional equipment for 1966 Ford car models. In 1968, a dashboard car radio with a built-in cassette tape player was introduced by Philips. In subsequent years, cassettes supplanted the 8-track and improved the technology, with longer play times, better tape quality, auto-reverse, and Dolby noise reduction. They were popular throughout the 1970s and 1980s.

Pioneer introduced the CDX-1, the first car CD (compact disc) player, in 1984. It was known for its improved sound quality, instant track skipping, and the format's increased durability over cassette tapes. Car CD changers started to gain popularity in the late 80s and continuing throughout the 90s, with the earlier devices being trunk-mounted and later ones being mounted in the head unit, some able to accommodate six to ten CDs.[21] Stock and aftermarket CD players began appearing in the late 1980s, competing with the cassette. The first car with an OEM CD player was the 1987 Lincoln Town Car, and the last new cars in the American market to be factory-equipped with a cassette deck in the dashboard was the 2010 Lexus SC430,[22] and the Ford Crown Victoria.[23] The car cassette adapter allowed motorists to plug in a portable music player (CD player, MP3 player) into an existing installed cassette tape deck.[24]

In the early 21st century, compact digital storage media – Bluetooth-enabled devices, thumb drives, memory cards, and dedicated hard drives – came to be accommodated by vehicle audio systems.

Active noise control and noise synthesis[edit]

The automobile sound system may be part of an active noise control system which reduces engine and road noise for the driver and passengers. One or more microphones are used to pick up sound from various places on the vehicle, especially the engine compartment, underside or exhaust pipes, and these signals are handled by a digital signal processor (DSP) then sent to the loudspeakers in such a way that the processed signal reduces or cancels out the outside noise heard inside the car. An early system focused only on engine noise was developed by Lotus and licensed for the 1992 Nissan Bluebird models sold in Japan.[25] Lotus later teamed with Harman in 2009 to develop a more complete noise reduction system, including road and tire noise as well as chassis vibrations.[26] One benefit of active noise control is that the car can weigh less, with less sound-deadening material used, and without a heavy balance shaft in the engine. Removing the balance shaft also increases fuel efficiency.[27] The 2013 Honda Accord used an active noise control system, as did the 2013 Lincoln luxury line and the Ford C-Max and Fusion models.[28] Other operating data may also play a part in the DSP, data such as the engine's speed in revolutions per minute (RPM) or the car's highway speed. A multiple source reduction system may reach as much as 80% of the noise removed.[29]

The same system may also be used to synthesize or augment engine noise to make the engine sound more powerful to the driver.[30] For the 2015 Ford Mustang EcoBoost Fastback and EcoBoost Fastback Premium, an "Active Noise Control" system was developed that amplifies the engine sound through the car speakers. A similar system is used in the F-150pickup truck. Volkswagen uses a Soundaktor, a special speaker to play sounds in cars such as the Golf GTi and Beetle Turbo. BMW plays a recorded sample of its motors through the car speakers, using different samples according to the engine's load and power.[31]

Components and terms[edit]

The stock system is the OEM application that the vehicle's manufacturer specified to be installed when the car was built.

Aftermarket components can also be used.

Amplifiers increase the power level of audio signals. Some head units have built-in stereo amplifiers. Other car audio systems use a separate stand-alone amplifier. Every amplifier has a rated power level sometimes noted on the head unit with the built-in amplifier, or on the label of a stand-alone unit.

Legality[edit]

Excessively loud sound systems in automobiles violate the noise ordinance of municipalities, some of which have outlawed them.[32] In 2002, the U.S. Department of Justice issued a guide to police officers on how to deal with problems associated with loud audio systems in cars.[33]

Gallery[edit]

  • A 1950s Philips car radio using both transistor and valves. This model used a range of valves that only required 12 volts for their plate (anode) voltage.[34]

  • GM Delco Transistorized "Hybrid" (vacuum tubes and transistors), first offered as an option on the 1956 Chevrolet Corvette car models

  • A car stereo head unit in a dashboard

  • 1942 Lincoln Continental Cabriolet radio

  • Dashboard of VW Hebmüller with Telefunken Radio (1949/50)

  • Blaupunkt Köln Radio - German 1958 Ford Taunus 17M P2 deLuxe

  • 1990 Ford Sierra CLX Radio-Cassette head unit in a dashboard with cassette storage

  • A set of speaker drivers removed from a passenger vehicle

  • Two 10-inch subwoofers in the trunk of a car

  • As technology keeps evolving, head units are now paired with the climate control system and other functions

See also[edit]

References[edit]

  1. ^Erb, Ernst (30 April 2012). "First Car radios-history and development of early Car Radios". radiomuseum.org. Retrieved 10 February 2020.
  2. ^Guarnieri, M. (2012). "The age of vacuum tubes: the conquest of analog communications". IEEE Ind. Electron. M.: 52–54. doi:10.1109/MIE.2012.2193274. S2CID 42357863.
  3. ^"Car History 4U - History of the Car Radio in Motor Cars". 2012-12-09. Archived from the original on 2012-12-09. Retrieved 2018-08-17.
  4. ^"Lessons of history inform ACMA thinking today: RadComms Conference". Radio info. 30 April 2009. Retrieved 17 August 2018.
  5. ^"10 Aussie Auto Facts You Probably Didn't Know". autoguru.com.au. Retrieved 2018-08-17.
  6. ^"The History of Car Radios". Car and Driver. 25 October 2010. Retrieved 14 January 2016.
  7. ^"Blaupunkt: Success Story". blaupunkt.com. Retrieved 2016-01-14.
  8. ^Harding (ed) (1977). Guinness book of car facts and feats. London: Guinness Superlatives. ISBN .CS1 maint: extra text: authors list (link)
  9. ^"When the Car Radio Was Introduced, People Freaked Out". MentalFloss. 3 January 2012. Retrieved 2016-08-10.
  10. ^ ab"The History of the Car Stereo". PCMAG. Retrieved 2016-01-14.
  11. ^"Mopar 914-HR Ch= C-5690HR Car Radio Philco, Philadelphia". www.radiomuseum.org. Retrieved 2016-01-14.
  12. ^Hirsh, Rick. "Philco's All-Transistor Mopar Car Radio". Allpar.com. Retrieved February 18, 2015.
  13. ^"Institut für Rundfunktechnik Historic Milestones". Archived from the original on 20 April 2009. Retrieved 2009-05-17.
  14. ^"March 2009: RDS is now 25 – the complete history"(PDF). Geneva, Switzerland: The RDS Forum. 2009-03-27. p. 1. Archived from the original(PDF) on October 7, 2009. Retrieved 2009-05-17.
  15. ^EP 1432157 
  16. ^"Das Autofahrer-Rundfunk-Informationssystem wird abgeschaltet" (in German). Regensburg, Germany: ShortNews. 2005-02-28. Retrieved 2009-05-17.
  17. ^"Best Double Din Stereo 2019 - Top 5 Reviews". Stereo Authority. 2019-01-01. Retrieved 2019-01-16.
  18. ^DeVito, Dominic. "Is the car CD player dead?". Crutchfield.
  19. ^Siegel, Rob (8 January 2018). "History of obsolete car audio, part 5: What's old is new (or, at least, in vogue)". hagerty.com.
  20. ^Sharon Riley (April 12, 2014). "Record players were the infotainment systems of the 1950s and '60s". Consumer Reports. Retrieved April 16, 2020.
  21. ^"The Evolution of Playing Music in Your Car 1980s-1990s: The Rise of the CD". Complex CA. Retrieved 2017-01-22.
  22. ^Williams, Stephen (2011-02-04). "For Car Cassette Decks, Play Time Is Over". The New York Times. Retrieved 2016-01-14.
  23. ^"The in car cassette deck lives on for one more year".
  24. ^Smith, Ernie (November 6, 2019). "The Car Cassette Adapter Was an Unsung Hero at the Dawn of the Digital Age".
  25. ^Peachey, Colin (1 October 2013). "Noise Optimization Technology with Colin Peachey of Lotus Engineering". Automotive IQ. Retrieved 25 March 2021.
  26. ^Filipponio, Frank (16 April 2009). "Lotus and Harman partner on noise-cancelling, noise-creating tech". Autoblog. Retrieved 25 March 2021.
  27. ^Peachey, Colin (October 7, 2013). "Active Noise Control with Colin Peachey of Lotus Engineering". Automotive IQ. Retrieved 25 March 2021.
  28. ^"Automakers shush cars with noise cancellation technology". USA Today.
  29. ^"Adaptive Noise Control (Automobile)". what-when-how.com.
  30. ^Harwell, Drew (2015-01-21). "America's best-selling cars and trucks are built on lies: The rise of fake engine noise". The Washington Post. Retrieved 2016-01-16.
  31. ^"The Rise of the Fake Engine Roar". Popular Mechanics. 2012-08-02. Retrieved 2016-01-16.
  32. ^"Boom Cars, Noise Free America". Noisefree.org. Archived from the original on February 19, 2015. Retrieved February 18, 2015.
  33. ^Scott, Michael S. (May 22, 2002). Loud Car Stereos(PDF). U.S. Department of Justice, Community Oriented Policing Services. Archived from the original(PDF) on September 23, 2015. Retrieved February 18, 2015.
  34. ^"6DS8". r-type.org. 28 January 2019. Retrieved 25 March 2021.
Sours: https://en.wikipedia.org/wiki/Vehicle_audio

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