I have a pioneer 980bt head unit with 2 amps one alpine 4 ch x100 running 2 componet sets 12 ga wire to the x-overs and 1 alpine mono 1000 running 2 10's. 1/0 power and ground running to distrubtion blocks, optima yellowtop battery, 160 amp stock att. everytime i turn up the volume the cd player...