as long as you don't have 4volt preouts from your deck, you can use turn down the gain on the amplifier so that it doesn't put out as much power. #2- dont' use peak power ratings, only use RMS ratings when matching an amp to the sub/speakers. #3- that amp will put out 360watts RMS @4ohm bridged(which is overrated... so truely 300-325wrms)
ps. don't apoligize for being new. we were all new once