I got my 2001 Xj8 in December 2011, and have begun noticing little issues, such as the door not unlocking when I want them to and have basically learned the cars finicky habit, but it seems whenever it rains or gets moist outside the car won't start or shorts out, leaving me stranded, all the terminals are properly connected, and once the car is jumped everything works fine. I had a AAA tech test the battery and he said it is completely charged, and the alternator is fine as well... anyone else have trouble like this?