I plan on installing 4 toggle switches to run a bow light, stern light, bilge and 1 as a aux. The toggle switches i purchased have two prongs out the bottom , to wire these switches i run one wire from the positive terminal to a inline fuse then to one prong?. The second prong i continue a wire to the item i want to power, but the item i want to power has two wires what do i do with one of the wires, does this become a ground and run back to the negative side of the battery? Help plan on installing this tomorrow.