Agree with you !! So I went back there today and spoke with SA manager about the noise on my nav drive. His answer was, well all BMW do that since the disc it's constantly running. I said that, on my friends X5 the nav drive it's very quiet. Then he goes, well yours does it more because of the new drive that was installed and that the newer style drives are louder than the old style ones At that point I said, well then I need my old drive back. So I have an appt for the 7th. Let see what are they going to come up with......