In 1932 a German company named Blaupunkt installed their first old form of car stereo speakers inside a Studebaker.
In 1952 Blaupunkt became the first company again to install an FM receiver inside a car. This became another milestone.
More info here:
Some Vintage Car Stereo Speakers Talkaboutcar
http://talkaboutcar.info/?p=30 ...
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