Hello all!!! Finally found the source of a little metallic rattle!!! Turns out one of the small supports in the OEM roof rack is a bit loose. The torx bolt is tight.. Have read a little about some people putting in a washer of sorts, but seems to be related to the actual supports that tie into the roof. Would really like to avoid removing the rack and disrupting the gaskets, headliner, etc. Let me know if anyone has any ideas or solutions! Thanks!!! Video of part in question below! Thanks FJ people!!!