I've got one strange issue left with my stereo install that I have not run into before, and im hoping someone can shed some light on it. The stereo plays fine with the motor off, but when the motor is on, the subs wont play (or they will cut in and out). I've got a 120A high output alt, runnign to 2 batteries via a perko switch. Bat 1 is the boat, bat 2 is dedicated to the stereo. 3 amps are connected to Bat 2 with 3 60A inline fuses. The other two play just fine (one of the amps is 1000w ppi running my nvs's). I checked the voltage at the sub amp and everything looks fine (remote lead too). I tried running in the rear inputs into the sub amp instead of the sub out to make sure it wasnt the output of the deck with no change in how it works, so im pretty certain something about the amp cannot draw enough current. Each amp runs 8Guage power/ground, and again, works fine with the engine off. Any ideas?
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