The headlight on this old 1986 model Fourtrax is pretty sad. I want to upgrade my lighting by adding two 4" 18W LED lights and mounting them to the bull bar on the front. I don't think I need to use a relay since it should only pull 3A, but I want to. So, I will. My question is, should I just wire it as a separate circuit straight to the battery or should I tie in to the ignition switch somehow? If so, which wire should I tap into? I have the wiring diagram, but I am having trouble understanding what its telling me.