Has anyone experienced an annoying vibration coming from the passenger door area of their Model X? My happens when I am driving on rough roads in town and is a rapid medium pitched plastic vibration sound (best I can describe it). It has been very hard to locate, but I think it may be coming from the door speaker panel. Any similar experiences out there? One other thing, the electric drive motors in my 90D Model X have a surprisingly loud whine when accelerating and decelerating. I recently drove a 2013 Model S loaner and it was perfectly quiet.... no motor whine. I was wondering if anyone who has both a Model S and Model X finds the motor whine louder in the X?