CD/Cassette for early C4
It is like any other in-dash radio with AM/FM CD Cassette. It takes 1 CD like most GM radios.
In order to use it in a Bose setup, there are 2 'cans' (i don't remember what they are called but they adapt a normal radio to work with the Bose speakers).
There are several of these on ebay for around $60. The one I got was a grey color, but they do make black (I just discovered). Looks good in the dash and appear to be the ones that MAD used to sell with the exception of the word Corvette on the Cassette cover.





