Well, I've seen posts about it here and I've heard it from others...I may have some issues on the passenger side rear. I am going to take my golf clubs out of the trunk today (could possibly be the culprit) and drive around to see if I still hear anything. I'm just a little curious though, is this covered under regular factory warranty (I'm still under for another 13,000 miles) I also have an extended 75,000 mile warranty as well. Should I just bring her in and talk circles around the service guys until they agree to fix it rtaher than being annoyed by me daily (the dealership is 1/2 a mile from my house). Other than the noise, does this rattle thing effect handling/performance. I had bad bushings on my old grand prix gt and I don't think it really did much besides annoy me. In closing: IT JUST SOUNDS LIKE WOODEN POLES OR SOME CRAP CLANGING AROUND BEHIND THE REAR PASSENGER SEAT WHEN I GO OVER LOTS OF BUMPS...AND IT'S BEGINNING TO ANNOY THE CRAP OUTTA ME UNLESS I HAVE A CD IN!!!!!!! or maybe I need new cd's, ?