Well, I posted this thread to see if it was indeed an issue. The first dealership I took it to wouldn't replace it under warranty. I even demonstrated the buzz and he just said I had the speakers on too loud (?). Luckily another dealership took care of it no questions asked.
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2009 BMW M3 E92 6M AW/FR
Eibach Springs + H&R Front Sway + LUX AE + LCI Taillights + BMW Performance CF Spoiler + Bastuck Clubsport Exhaust
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