bottedi

Quick question: In my 2002 ML320, I just started having a weird new problem. Every morning when I start the car, I hear a very high pitched noise coming from the dash area. It sounds like a pizo buzzer going crazy! Very high pitched and very loud. It lasts for about 1 - 2 minutes and then just stops. I tried to switch all of the various systems in the car on and off, but there does not seem to be a correlation.

Any help would be appreciated.

Thanks