Teac Ad-500 Compact Disc Cd Player

Unit turns on and opens, closes, and displays that it is playing the disc or tape. However, I am not sure exactly how to hook this up and don’t have anything that will play this old technology. So I’m selling as-is or for parts. Missing knob for pitch control and has some surface level dirtiness and dust. The stuff on the top won’t come off with a simple dusting. See pictures for full condition.