I bought this used and am restoring. The stereo didn't work at all. I sent the speakers/amplifiers and radio to CorvetteRadios. Com and they refurbished them. The radio itself was ok so they cleaned the heads and didn't charge me. Reasonable prices and good service, but. Now the system works for about a minute and starts to cut out then quits altogether. CorvetteRadio. Com thinks it is the power relay. The problem is, I can't find it. Would you happen to know where it is mounted?
Thanks in advance.
p.S. I ordered a GM shop manual, but I am anxious.