Mine has had a "buzzing" sound coming from the center of the dash when accelerating when cold. After the car warms up it goes away. Not sure if it's when the engine has warmed up or the interior. I've been living with it for the last 40K, but I wouldn't miss it if I can ever eliminate it. 
- Jim
'96 Mystique GS, Ztech - ATX,
with CD changer, Sylvania Cool Blues, sunroof, keyless entry, and 9mm blue wires
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