Originally Posted by Tonyrodz
Just for the hell of it I have a cass radio from the same year--w/eq--that came from a car that had wheel controls too. Splice it you think? I've taken radios apart before and swapped parts so it'* nothing scary for me
Based on my experience with older units, and some squinting at photos of the CD and Cassette models of that year, I would say it'* possible. The AC-Delco units in general are nicely modular inside, so that you can, say, quickly swap out a balky cassette unit, put in a repaired unit and return the customer'* own stereo (at least, all of it other than the tape mechanism you just replaced). It appears from the faceplate of the '93 units that the CD player and its control buttons are on a separate subassembly that sticks out through the lower half of the faceplate; the cassette unit has all the same faceplate except for a different subassembly in the same hole. (In fact, the older non-tape stereos from the mid-'80s just stuck a filler plate across the lower hole where the cassette mechanism was supposed to go.)
So I say if you've got a CD and matching Cassette unit (e.g. both '92 or '93 units), try your luck.