Hollywood187

Awhile ago I replaced my front speakers with MB Quart seperates. Ran a LOC from the rear speakers for the fronts and tagged off the factory sub wiring to a JL Audio 12W6 . I noticed that my bluetooth to access/pair my phone sounded very low and like static to the point I couldnt understand it. This weekend I installed a LC7i pre-amp and included the rears also this time and hooked all of it to a JL Audio 500/5....I hit the bluetooth button on my steering wheel and I heard the setup voice loud and clear. Does the HU control the bluetooth? or are there certain wires that work with the BT from the HU to factory amp to the speakers? I only hear the BT voice out of the right side now and wondering if I can get the left side to work also. Im ok with one side..I dont have to have that cheap Jabra cruiser to make/receive calls anymore!

THX