I recently have been experiencing problems with the membrane trunk button on my challenger. The button does not unlock the trunk at all, and while both the trunk button inside the car and on the keyfob itself works, I still rather use the membrane as I don't always have the ability to get the key from my pocket. I checked in the manual but I didn't see any fuse that would link to this. This IS only a guess, but I think it may be an electrical related problem. Anybody have any suggestions?