I ran mines with AMP wire and just put a inline bus fuse on it, nothing complicated and its been like that for over 6months. Ive never had any issues or nothing, no circuit breakers or nothing fancy, I just made sure I thoroughly electric taped the entire amp wire from begining to end just to make sure and taped my hot terminatal on the battery.

Ive only blown the fuse on it once awhile back when i had did a fuse box relocation and something touched. Fixed it, replaced fuse and was all good. You are suppose to get a sealed battery box but what the hell I got this from walmart for 6bucks and im not coughing yet.

For how it looks on a 1g with crappy gutted interior panels. ( My b the pics are so big. )