I have a banging sound coming from the trunk area when I go over bumps, and it's driving me crazy because it's about the last of my rattles.. I've had it since I got the car on the road. It's not the gas tank or rear bumper, but it sounds like the noise is coming from the trunk lid. The sheet metal right between the front of the trunk and the rear window seems really flimsy. When I hit a bump, it sounds like someone is pounding their first on the trunk. I'm thinking that the narrow panel between the trunk and the rear window needs to be reinforced. Has anyone else had this problem? I'm not even sure that I've identified the problem, but I think I have.