I have an Oldsmobile Delta 88, 1999 with 1 15" L7 Kicker Solobaric in the trunk and pioneer 6x9s'. I have begun to notice a rattle in the interior, basically the only interior rattle I have and I have pinpointed it to the garage door holder or little cubby hole above the rear view mirror. Sounds like a screw has popped loose and is just bouncing around. Any other suggestions of what the rattle might be as well as suggestions as how to get inside of that compartment and look for a screw? Any help will be greatly appreciated.