.......after taking apart the console and the fader, cleaned the contacts inside it still no sound from the L/R. Took the back seat out and swapped the amps and VIOLA it's now got tunes everywhere but the driver door. I can live with that, not perfect out of the L/R but much better than before (nothing at all).

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1991 300SE (my ride, 279,000 miles, looks almost new
1954 Cadillac (21 yo son's car, he bought when age 15)
1972 SeaBird 19 ft runabout (old but solid, slant six, Volvo sterndrive perfect condition, undergoing complete overhaul and refit)
1998 Toyota Rav4 (my sons daily driver when he is in the Continental US, PROUDLY serving in US Navy)