I have a whine that comes from the front under 2000 rpm, it almost sounds like a supercharger, and then at cruising speed with the radio off you can hear it too (of course crusing speed is right around 2k in 6th gear)

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2006 BMW X5 4.8is Lemans Blue/Beige/Dark Maple
-Nav, Comfort Seats, Heated Steering Wheel,
Rear Airbags, AUX Input
2009 BMW M3 Space Grey/Black/Carbon
-all options