I do not know anyone for this. I have brought this up with the dealership and they could not reproduce the sound. However, whenever I listen to songs, especially on the radio with bassy music, red hot chili peppers, or something like mudvayne. I think I have narrowed it to the passenger side bass, will "bottom out"

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Current: 2008 Infiniti G37 6mt
Retired: 2002 BMW X5 3.0i


BMW CCA member