I have a stock Kenwwod head unit with the six stock speakers in my boat. I have 4 diamond audio speakers on my tower. I have one 8" sub and two 10" subs. I have Two amps one is a Fosgate four chanel and the other is a MTX two chanel. The MTX runs the tower speakers and the fosgate runs the subs. One of the tens is bridged. I am still haveing a problem with the radio it self cutting out at higher volume. I have re grounded all of the system to the battery. Should I groung the Head unit to two different spots? I still have the old groung wired up and could re-atach it. Like I said the Headunit it self is shutting off and then turns back on.....Please help.