When I open any door on my less than 8,000 mile SHO there is a quite loud electric motor-running type sound that lasts about 2-3 seconds (It has made the sound since I got it new last October). I turned off the automatic seat position memory, so its not the driver seat motor moving the seat (my 10 year-old Daughter would get in the seat behind the drivers seat and have no leg room or have the driver seat move into her legs when I shut the car off). Sounds similar to an electric fuel pump starting up. Anybody else have this sound or know what the source of it could be? Is it normal or should I take it to the dealer to have them figure it out? Thanks!