1922: Chevrolet introduced a new automobile that included a radio (a $130 add-on to the Model A’s $540 sticker price.).

• 1922: Chevrolet introduced a new automobile that included a radio (a $130 add-on to the Model A’s $540 sticker price.).

• 1930: Motorola introduces its in-dashboard radio

• 1952: FM radios were introduced and radios in automobiles became common.

• 1965: Motorola places 8-track players in Fords.

• 1970: Cassette-tape players

• 1985: Sony introduces an in-dashboard CD player in some Mercedes Benz models.