THESE FUSE HOLDERS ARE AVAILABLE AT ANY AUTO PARTS STORE FOR ABOUT 3 BUCKS. IT WOULD BE EASY TO INSTALL BY CHANGING OUT THAT SHORT RED JUMPER WIRE IN YOUR TERMINAL STRIP BETWEEN THE BATTERY INPUT AND THE WIRES FEEDING OUT. ON MY EXCAVATOR I HAVE A 10 AMP IN AND HAVE ONLY POP'D IT ONCE WHEN I HOOKED A BIG ROCK!
ROB