Anyone have part #s for compatible Delco CD players?

[gordyzx9r]

Every so often I tag along with a friend on his excursions to the pawn shops in his never ending search for more junk. I'd like to buy a stock appearing GM AC Delco CD player for my GN. I've done a search & all I find is what vehicles & years had units that will work. Does anyone have part #s just in case I run across one in a pawn shop. I'd rather not pay the $300+ that appears every so often on ebay.