Anyone know if there any internal "pots" inside the factory Bose amp? I would like to turn up the gains a tad to make up for the lower voltage of the Piioneer avic I installed. If not can any one suggest a small form five channel amp to swap out the factory amp. I have a ton of large amps, but I want to keep the interior looking as stock as possible.

Currently I'm using the metra harness to retain the Bose amp... Maybe I should swap it our for the PAC NIS2? Not a fan of line drivers or speaker level to RCA...

Thanks