[OSDCrusher]

Update: got the tape player in and connected it to the amp. Works half of the time. The other half of the time, it will keep auto-reversing whatever tape I put in it. There is no sound from either the tuner or the tape player. I assume the speaker wires were spliced and cut to work with the aftermarket radio? There is one connection missing because there is an open spot on the amp for a connection that my truck doesn't have; I assume for speaker wires because there is no sound from tuner or tape player.
Any ideas?