My wife has a 945 turbo, every now and then there`s a strange noise from under the dash, to the right of the steering wheel - It`s right hand drive. It sounds like a short burst of chattery squeeling, like a dry bearing on a small motor, or possible a relay chattering, about 1 second in duration. It`s completely random, not apparently linked to vent motors or anything like that. Has anyone got any idea what causes it? Also there`s a little hatch down there, about three inches by 2 with a rounded top end, there doesn`t seem to be anything behind there, any ideas what it`s for? Regards Ron (UK)