So do that problem happen even when your playing Bluetooth music? Or is it just when someone calls? I am going to have my amp on the trunk so I would have to wire it to the rears. so would I still be able to hear the subs over Bluetooth if I did it this way while listening to music?
I do not know much about wiring, but I know a bit. If I just want to add a amp and a sub couldn't I just get a DLOC for my amp and splice it into one of the rears in the head unit which would provide a bass output. Then Just connect my sub directly to the amp and I would have bass?