(Watch the Radio Shack commercial here for its 8-track "car stereo player ... “It’s a very peculiar and somewhat complex system inside that 8-track cassette,” he said, “that is somewhat ...

The Stereo 8 edition improved ... they called a Stereo-Pak system, a four-track cartridge that could play in cars. Eventually William “Bill” Lear, a former used car salesman, saw a way in ...