I have a 92 GXE with the BOSE system. The front speakers and amps both work because ive been listening to them for a month now. There is a slight whine when the radios on but volume lowww so maybe the amps in front are no good? THey seem fine tho. Rear speakers were missing as weel as head unit when i got car but the rear amps are still there. Dont know if they work but since the speakers were taken out id assume it was those that were bad not the amps. EIther way each amp is 25 + shipping from 60634. I can get pics if you guys want.

O yea and if anyone wants the speaker brackets for the front theyre 10 + shipping.