I heard the Individual sound package is supposed to be amazing, better then the Premium Logic 7, Bose, and Bang & Olufsen.

Might be worth looking into if you want an OEM BMW setup with the best quality.

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2011 ///X5 M (On Order)

2009 X5 4.8 M Sport Space Gray/Black Fully Loaded

2007 GMC Yukon XL Denali Loaded and Customised