What is the best way to get car audio amps to be hooked up in your house permenatly? My amps push 1250 watts and 928 watts. I knwo you can do it thorugh a battery charger, but I have known peole that have blowb amps doing that. Is the best way to do it with a power source, and If so what would be the size of the powere source you reccommend?