Luckily the PO replaced the battery within the last few months, nothing special about it, but its a good brand. The factory ground had a ton of corrosion on it, soaked it in clr to clean it up for now.
I just don't want to kill the alternator with the amp running and getting these big dips in power with the fans kicking on and off.
Also, is there a spot to sneak the amp cables into the cabin without drilling holes? I HATE drilling holes in cars, as I have restored a couple and try to avoid causing any unnecessary damage if I can.