There are some other ways to get where you want to go. One is from Grom, another is the Audiovox mediabridge or the Dice/Audiovox silverline. Grom and Silverline are between $80-100 on Amazon. The mediabridge at about $150. I have the mediabridge. The mediabridge provides BT, AUX, USB and satellite radio as an addon if you want. It uses all existing radio and steering wheel buttons. All are available on Amazon.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas