Just got back from the dealership. No luck in fixing this. I have a high pitched rattle in the cabin caused by road vibration. I don't hear it when stopped and the engine revs does not affect it. In sounds like the cabin itself is making the noise. It does not seem to be coming from the tires. I adjusted the latch back rubber stops. I removed the black privacy skirt. I took everything out of the back. I hear it with the stereo on and off. Bobby, my mechanic, pulled the engine cover and inspected the gasket. It is still there and very annoying. Has anyone else noticed this? Any ideas?