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      01-22-2013, 04:36 PM   #23
ChrisK
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Drives: F82 M4
Join Date: Jun 2007
Location: IL

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2011 BMW M3  [0.00]
It definitely could be something rubbing and the resonance is transferred into the cabin. I'm not sure its directly behind the Nav, the sound seems to move.

As I said before, the sound is gone since it got so cold (-1 F)
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2016 F82 M3: SO/SO • DCT • <Waiting for allocation>
2011 E92 M3: AW/BLK • DCT Europäische Lieferung am 6. August 2010