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      01-22-2013, 03:36 PM   #23
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Drives: E92 M3
Join Date: Jun 2007
Location: IL

Posts: 4,859
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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)

2011 E92 M3: AW/BLK • DCT
Europäische Lieferung am 6. August 2010
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