problem with repaired bose system

[396chevy]

Hello I have a 90 vetted with the Bose gold series CD player in it. Anyway I recently got the head unit and all 4 amps repaired by dr. dons everything seemed to work all rite for a while i.e. 5mins until the rear drivers side speaker was only working intermittently, hoping it was the amp and not a bigger problem I switched it to the other side i.e. right rear, and tried it, and again the same speaker assembly only works intermittently so I’m pretty sure it’s the amp, oh and it also seems like I’m not getting much base out of my other 3 speakers? What’s going on?

[RandyJ75]

Did you have CDM looked at also? It is the box that contains the amp and brains of the system. It is located on the passender side of the dash. You will need to remove the hush panel to remove it. Check the C4 sticky at top of the section for details.

Randy