News:
Your tail lamps and cig lighter are off of the same fuse. f you have power on both sides of fuse 4 but have no power at the cigar lighter connector, you have a broken wire 'somewhere' between the fuse and the lighter. No easy way to figure out where. You gotta follow the wire until you find the break. If your tail lights are out too, then I would think you have a bad connector right at the fuse box. There are two wires off of fuse #4, one for tail lights and one for battery acc feed that includes the lighter. If you contort your neck enough, and look under the dash you will find a red three connection molding that is the only connection between the fusebox and the cig lighter. The map light also is connected there. Maybe your problem lies within that red mold connector. Make sure you are looking at the right one though. There is a red one and an orange one and a yellow one. With poor lighting, you may confuse the red and orange connector. Ask me how I know.
The suspense is killin' me. Good thing we got popcorn.....