While I was plugging a Garmin GPS into my cig lighter. the end had unscrewed and part of the adapter (metal ring) fell into the cig lighter shorting out and blowing the fuse (fuse 21 in the glove box). I replaced the fuse but it did not fix the problem. I used my voltmeter and determined that I wasn't getting power to the fuse anymore. Is there another relay that could have blown also? I have reviewed the Bentley manuals but can't seem to get an answer to my question.