1991 350SDL Radio
 

Radio will power up and accept the code and will seek and tune but no sound from the speakers. Could this be an amplifier problem? All fuses are fine in the fuse box. Does the amp have a fuse of it's own? Where is the amp located?
The radio was removed when the evaporator coil was replaced, has not worked since. Thanks

Are you certain that all connectors were re-attached? I recently installed mine and one of the spade connectors kept the radio from making any sound. Just like you are describing. Otherwise, the fuse that controls the amps. I have a hard time believing that both amps went bad at the same time.

The amps are located behind the rear seat. Are you sure you got the large gray data cable plugged in completely?

-J