Ya...best way to deal with it is wire a gain knob that you can adjust up to the center console or something. Or just deal with the bass reduction. It Still sounds better than stock.This is exactly what it does. Bose is absolutely horrible and the signal in the car is neutered by their overly aggressive tone and eq mapping. Even if you get a cleansweep...it is still there because you are still pulling from the high level outputs post the Bose amp. The only true way to get around it is to either hardwire an audio source to an aftermarket signal processor (like your phone) or connect to the aftermarket signal processor through Bluetooth. Then of course...you would need aftermarket everything else as well.