I've had no problems with my radio cover, however I must admit that I almost never use it. As far as the hatch rattling and the sun roof rattling... well yes, this is rather common. There is a TSB for the sunroof rattles, not sure about the hatch. The sunroof rattles i'm hoping were resolved in the '06. Still too early to tell. But if you do experience them just take your car in... thats what your warranty's for right?