I'm having issues with my Cobra driving lights. The other day, one of the light bulbs blew, so I replaced it. A few days later both light bulbs blew. Well, I just took one of the lights apart to replace the bulb and the female end that the bulb plugs in to and the other female end wire that is the ground were both dark brown( almost black in color ). I haven't had a chance to follow the wires back into the headlight bucket to see if I can see a problem. Does anyone have any idea what could cause this? Maybe a burned out fuse or poor ground?? I can't remember if the lights had an in-line fuse when I wired them up.