On my 2003 X5 3.0, I have the notoreous rattle in the back tailgate. In trying to determine where it was coming from, I removed the trim around the upper tailgate window. I noticed a wire (see brass looking connector) that was hanging loose, and wondring if I disconnected it somehow when removing the trim (the top protion of the window). My first thought was that it was an antenna for an option I may not have.

Any help would be greatly appreciated.

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