I have put 3800 miles on my Nitro and have already replaced both front speakers and the torque converter. This new problem is truly unique and a bit funny, but frustrating none the less. The other morning I went outside to warm up the truck before leaving for work. It was 5 in the morning! I clicked my unlock button and to my suprise my stereo turns on. It has done this on and off since. I have noticed it is more frequent when very cold outside. I brought the truck back to the dealer. They experienced the same problem, but have no idea why. They say everyting is checking out fine. They are currently trying to figure out what to do. I will keep you posted.