So I have 07 Grand Prix GT with Monsoon. Replacing HU, door speakers and adding a sub...everything will be amplified. I have the GMOS-04...Since I am adding aftermarket amps for sub and door speakers, how will the door chimes work?? I don't think they will. I was thinking of tapping into wiring harness after GMOS-04 and running a speak wire to center speaker for door chimes. I know the chimes go to the LF speaker. Has anyone replaced everything and kept all the door chimes??? I have looked and looked in the forum...can't find any info...Please help me.