I've been playing with mounting my GH2 on a suction cup mount recording in my car. The mount is sturdy and the camera rarely moves, unless I hit a big bump. The camera has rattling noises. I removed the rings for the neck strap, thinking that it those that were vibrating on the body. However, it still vibrates and rattles. It doesn't do it the whole time, but fairly frequently. Any suggestions on how to remedy this? I'm thinking I should get a boom mic maybe.