New owner of a 2004 Coupe (30K miles!!). I had the rattle, too. Drove me nuts. Then, somewhere in a thread on the subject, someone mentioned wrapping the hatch latch (the part on the body) loop (hatch latch loop -- say that fast 5 times) with a few turns of electical tape. RATTLE GONE! Drove more than 100 miles today on all types of roads --- blissful, smooth silence. Worked so well I took it a step further --- replaced the electrical tape with a 1/2" piece of the loop side of velcro (softer, fuzzier side). Not only does it look better (tho' I'm the only one who would really notice), it works like a champ. Hope I don't get the muffler rattle syndrome.