I have done this before (tapped off of the back speaker wires) and had no probs , that was in my old car with rear speakers. This one has them in the rear doors and I thought that I would ask before I did something.
My HU has the RCA jacks on the back but if I run that to the amp, the RCA inputs are for low input. Or do I clip and strip the end to the amp and go through the terminals??
Thanx