<Li> <P> 1955: World's first All - Transistor car radio - Chrysler Mopar 914HR / Philco model C - 5690 </P> </Li> <P> 1955: World's first All - Transistor car radio - Chrysler Mopar 914HR / Philco model C - 5690 </P> <Li> <P> A 1950s Philips car radio using both transistor and valves </P> </Li> <P> A 1950s Philips car radio using both transistor and valves </P>

When did aux cords come out in cars