Ok I've tried everything and stereo shops all tell me different. I have 2 12 kicker l7 4ohm speakers wired to 1ohm to a rockford fosgate t1500 ,I have a red top optima as primary battery with 0 gauge ran to trunk battery, then 4 gauge ran to amp. I grounded trunk battery with 0 gauge and my amp is grounded to trunk battery with 4 gauge. My alternator is 130amp and has 4 gauge to primary battery. Now sometimes amp gets hot and cuts out, other times mybattery light comes on so I turn it down,now the question is, do I have a wiring problem somewhere??