So I have four KC Daylighters (155w iirc) mounted on the front bumper, two of which I have wired to the battery. I would like to wire the additional two lights to the wiring harness that is already installed as I'm running out of room with lights and the winch. I would like to wire them so I don't have to run additional wires to the battery terminals (running out of room again) and use the same switch to turn on/off all four lights. I guess what I need help figuring out is where I should tie in the second pair of lights and how, and if I need to upgrade relay/switch/fuse to run them all on the same system. Figured I should ask the experts so any help much appreciated!