I'm doing a little re-wiring of my electronics. I am running my vhf, Depth raider, GPS, and an extra cigarette adaptor to a terminal block under the helm. Then a main wire (#10) from the terminal block to the Battery. The Vhf, Depth Raider and the GPS all have inline fuses. How big a fuse should I put in the wire from the block to the battery? Thanks for any input. Rick