I have the exact same rattle in my 6, so I think I'll be checking the striker and latch bolts when I get home. Thanks for the point in the right direction on getting this fixed, as it just recently started (12K miles).That's the exact diagnosis and fix that was listed on my car. It's very possible that my car served as a guinea pig for this (I'm more than happy to serve the greater good). Very pleased to hear that your rattle was fixed!
I have to say, the car sounds as it should, runs as it should, and is much more pleasant to drive without the blasted rattle in my ear.