Radio systems were installed in the cars to provide people entertainment.
Till the 1950s radios were working using AM signals. First big step for audio
systems was introducing FM (today’s signals) which were developed in late 1953.
Next big development was tape players and so cd players in the 90s. In the most
modern cars we can find audio systems which can be controlled from smartphones,
using Bluetooth. Modern systems also provide navigation systems and dvd
players.
Many vehicle owners choose aftermarket car audio systems to improve audio quality inside their
cars or trucks. In conjunction with speakers, amps, and other components, the
right head unit can make an audible difference. Some car stereo systems come
equipped with USB ports and Bluetooth, making it easier to connect external
devices and stream music. Before purchasing a head unit, consumers can research
available models to ensure they choose their ideal car stereo system. Below
there are photos showing Car Radios evolution over the years.
80’s Radio. [FIG1]
90s Radio [FIG2]
Modern stereo system [FIG4]
[FIG1]http://www.thetruthaboutcars.com/2012/02/another-reason-the-old-days-werent-so-great-car-audio/
[FIG3][http://gmlongroof.4umer.com/t7246-disco-radio-1-5-din-alpine
[FIG5]https://www.pinterest.com/explore/car-audio-classifieds/
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