So from my other post, I was having a speaker buzz after I installed my amp and speakers. Tonight I decided to rewire my setup so that the alpine amp's input is from the bose amp's speaker output instead of the input going into the bose amp. Buzzing noise, GONE!

To step back and scratch my head a little, my theory is that the harness coming from the front of the car not only includes the headunit signal, but also power wires, turn signals, lights, fuel pump power, etc. Hence, with my previous setup, the speakers clicked with the turn signals and and brake. The bose amp has a built in noise-filter that is missing from my alpine amp, so thus when I bypassed the bose amp I had noise. I don't have this problem the way it is set up now because I have the bose amp filtering all the noise! Everything sounds great now!