I had a similar problem with my car. If you are getting light around the cig lighter and your radio works its not an issue with the fuse since they are on the same circuit. On mine it ended up being the lighter itself since I tested for power to the lighter. I switched out the interior metal body and it worked. Its easy to do. Just pull out the center bezel and unscrew the retaining nut on the back of it and it slides out.