I need help with deciding what fuse to get for my fuse holder near the battery. The amp I'm getting is a Hifonics ZRX1816.1. My amp wire is 4 Gauge and subwoofer is wired to 1 OHM I currently have a 100A fuse in my fuse holder when I purchased a wiring kit. The amp has two 70A fuse on it so does that mean I need a 150A fuse for my fuse holder? Or will the 100A in my fuse holder work?