I previously installed my whole system in my OBS truck and now i have a NBS. Where is the best place to hook up my power cable for my amp? I just went outside and took a quick look and it seems like the best place would be inside the little red box that says battery. It's where the alternator wire hooks up to the power system, but i was wondering if maybe this wasnt safe because of the current from the alternator comming in to that post inside the box. It just seems easy cuz i have the round wire connecting ends on my cable so all id have to do is take the nut off and put on my wire and then tighten the nut back down.