I want to put a fuse block or something similiar with circuit breakers. Does anyone have a wiring diagram for that? I assume that it's just power from the battery to the fuse block. Then from the fuse block to whatever I want to power. Then ground that 'whatever' device on the other side. Is that correct? Or do I need to ground the fuse block too? How would I make the same thing but only where it turns when the switch is turned?