The amps I purchased showed up yesterday and I had a chance this evening to install 2 rear amps and 1 front amp. They were actually the sigma 975 amps not the 075 that I originally thought I purchased. They were plug and play so the install went very quickly. I'm happy to say that the stereo works perfectly with a minimal investment. Thanks to all on this forum for their input and sharing ideas. Without you guys, I would have spent at least $250 to repair the old amps. I'm a very happy camper this evening.
Mike Boggs
94 ZR-1 AB/Blk
92 C4 white/white/white
97 C5 white/blk