ok so long story short (ha pun) one of my rear running lights went out so i needed to replace it, while i was back there replacing it, i found these two cords, a rounded one that looks like an old ps/2 port, and a black rectangular plug that kind of looks like a trailer light hookup, i moved them around a bit and now my left-most gauge cluster is out, i found it was just a blown fuse, (fuse #9) but whenever i replace it and then go into reverse, it blows the fuse! so does it have anything with those cords? i cant find any ports those might go into, or would it be because of the lightbulb? please help!