Update: That did not fix the rattle noise. I also tried the fix related to the seat release levers and that did not work. The only other thing left would be what someone posted about something inside the rear fender where the brake light meets the body molding. Someone posted a screenshot of...
All,
For what it's worth I was having a rattle, too, and it seemed to also mainly emanate from the rear, passenger side. I JUST took out the foam insert, inside the spare tire, and the rattle is gone. This was after I wrapped that entire piece in microfiber cloth. I carry a lot of gear...