I was given an old school Rockford Fosgate 1001bd and 12 inch HX2 DVC 2 ohm. I want to properly fuse this amp at the battery and amp (no fuse on the amp) for my daily driver. I only plan on running the amp at a 4 ohm load (don't need to be too loud). Rockford recommends a 100 amp fuse (I'm...