While it could be a voltage regulator problem, that seems odd. Unless, like Dalton said, those amps are just super protected against overvolt conditions. Its not uncommon for voltages to jump around like that.

One of the first things I might try is to get the amps off the alternator circuit. You could unplug the alternator, but I'd rather see you throw another battery in there temporarily. Hook power and ground right from the amps to this battery. Make sure everything is bolted down, and then try stomping the gas. If this fixes it, it most likely is a voltage spike. If it doesn't, well, then it isn't.

If it is a spike, you could either fix the spike, or damp it with a big diode.

Toby

 

im pretty sure its a spike now. I sat in there agian thinking of what everyone has said, looked up at the remote for the amps and opend the door (turning off the radio) and it popped, like always and the remote flashed "sx 900.4" "overcurrent" back and forth.. So i went to the sick bay and looked at the max volt and it was like 15.7, thats damn close to the 16 dalton was talking about.. what do you think??? and please elaborate more on this diode thing, what is it, how do i get it or make it if thats the case, and what is a price on one?