I have a 3 position switch. Center is off, up is nav lights, and down is anchor light. Anchor light works, but when flipped up, only bow works. I disconnected everything to try and figure out what's going on and this is the wierdest problem. I left the ground hooked up. I flipped the switch up, and hooked up the anchor light. It works. I unhooked it and then plugged in the bow light to the same prong. It works. I tied the two together and plugged it into the prong and only the bow works. I then untied them, plugged in the anchor light and it works. I used a piece of wire and connected bow lights to same prong and anchor lights go out. Why won't both of these positives work together? I even tried it on my bilge switch. I unhooked the positive to it and plugged in the anchor. It worked. As soon as I touch the bow to it, the anchor went out and bow is on. I even tried the following: left anchor hooked up to nav prong and plugged bow into the bilge prong. When I flip the bilge prong, the bow would come on, yet the anchor would go off. If I unplugged the bow, the anchor comes back on. Any suggestions????