Hey guys, I'm getting my system put together and before I amp it I'm going to preemptively do some damage control. I'm going to do the big 3 with 0 awg wire and install an agm battery..... I am completely new to this but I'm planning on mounting it where the stock air filter used to be.. now, the stupid question is, does this auxiliary battery get hooked up to the alternator or the other battery. I'm guessing the battery but let me know. Thanks.