Installed mine a week ago and mounted it on the passenger side of the gear stick. Little bit of a pain threading the cables around the car but all in all took me about 2.5 hours.

As suggested contact Tom G for the latest firmware to make it work properly.

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Currently 2010 X6 35i, Premium, Technology, Sport.
2004 Lotus Esprit - Final Edition
Former '04 X5 4.4i, Highland Green, Nav, DSP, PDC, Heated FR & R Seats, Comfort Seats, Rear Load Floor, Premium & Sport Package, IceLink Plus, Bel RX65, Tow Hitch, Sirius Satellite Radio.
Former '03 X5 3.0, Nav, Premium, Rear climate. (Stolen)
Former '01 X5 3.0, Nav, Premium, Rear Climate (Lemoned)