Cutting out?

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.

check wiring for loose wires. high volume turn offs tell me that you've got something physically loose or that you've got a voltage problem and your unit is starved for power to the point that it shuts down. check both an report back to us.

-Brian
Exile Audio