How about something to do with towing. Is there a towing button in the X, because most cars that tow have a button?

For 1 and 9 it has to be something which is both on the left and right side and probably an accessory. #1 to control the left side and #9 to control the right side.

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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