severancej, Thanks for the help (along witht the others). I hooked the multimeter to the pos and neg and it is reading 12 and down to 11 (occasionaly droping into the high 10s). Is there something I can do? Also the Amp gets really hot (Alpine monoblock MR 1000). I have to have it loud to compensate for wind noise while driving (the system is in my boat).