slave CD player
if you look at your radio, it has the radio/tape in one DIN slot, and then below that something else in the other DIN (i'm assuming a pocket, or coin/cup holder). there's a factory CD player or very RARELY a factory minidisk player that can go into that slot, it has connections that plug right into the factory tape player, and is controlled through the tape/radio (thats why its called a slave cd player). word to the wise- if you're going to go ahead and install a cd player, a 100 dollar aftermarket one will sound and work better than the stocker... but if you like the stock look, it's really easy.