My 120watt cigarrete outlet does not seem to have a good connection. If I plug something into socket it won't stay on. If I move it around a little it will sometimes light up. I checked fuses they looked fine. I'm am thinking it's a bad socket/loose wiring maybe. How do I remove and replace? I can't seem to figure out how pull it out or even get to back side. I removed radio but still can not reach. Please help!