Hey, I was installing this pioneer amp yesterday and had an unusual problem with it.
Wired it all up then plugged in my mp3 player using RCA to 3.5.
I could get no sound if Left and Right RCA were in the input
However, If I had one of the two RCA's plugged in and I touched the other to the Chassis of the amp I would get a signal to one of the speakers.
Worked for Left and Right.
Anybody had a similar issue?
Layout of amp