Looking at my chiltons I think I locates a pair of speaker wires so I used a multi meter and it read about 2 Volts so I found another connector by the trunk with the same color wires opened it and got the same reading ... turned off the radio no reading , back on same reading, so I now think the problem in the trunk
So I am putting the tupperware back on, ride it the weekend and try again some night after work next week
Thanks for the reeducation Ive long forgotten some of the diagnostics
Did we establish that you DO have sound at the front spkrs? And as Newbuellertoo mentioned, the fader is not dialed all the way forward?
You established that you're getting rear spkr signal from the radio. And while the twist conn is separated, do you see approx 4+ ohms on each pr
headed to rear spkrs?
If you see the ohm readings of the spkrs, then allowing for a connection problem at the twist conn, everything should work. If one or both pairs are reading something else or nothing at at, then your prob is definitely somewhere south of there. Trace it out. Divide & conquer.
If you get ohms readings on both of them, make sure to shoot for foreign grounds on all 4 conducors. Sorry, I still don't know the scope of your expertise, but just compare all rear spkr conductors to a known ground using the same ohm scale.. If you see continuity to a ground, which could be attenuating the signal to the spkrs, then track it down & eliminate the ground.
If there's a ground or short across both pairs, I'd be looking near the hinge/pivot points of the trunk, as sometimes wires get pinched or chafed.
If it all looks normal, just for fun, I gotta ask: You got the volume turned up on the rear control?