I've owned my 2006 2500 for about 8 months now. Approximately 4 months ago as I was leaving work the van wouldn't shift out of park. Thanks to info on the forum I was able to use the pencil/pen override trick and got the van home safely--which was lucky because I later realized I'd driven 20 miles without tail lights. Once home, I further searched the forum and was relieved and happy to diagnose the problem simply as a blown tail light fuse. I didn't think much of it, I've had fuses in other vehicles blow before, replaced, and no further issues. That was the case for the past 3 months. Unfortunately, in the last month the same fuse has blown 3 or 4 other times. I'm guessing that there is a short in a wire somewhere, possibly a bad connection or a spot where the wire insulation has worn through. I've removed the tail light assembly from the inside of the van and checked that area for anything that looked suspicious but didn't find anything. I'm not exactly sure how the wiring runs through the van, but I've converted mine to an RV and the interior ceiling and walls are now fully covered--so removing the wall coverings is not really a good option. Has anyone else had the same issue or anything similar? Any advice to locate the problem? Thanks!