I just had the alarm system installed in my X3 last week at the dealership. It cost about 120.00 in labor, but it seemed more efficient to pay them to do it than for me to screw it up.

It protects the car from being flat bedded, having any of the doors opened, including the hood, and has a tilt sensor and motion sensor. The best part of the alarm system is that it sounds a little chirp when i lock and unlock the doors.

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'09 Porsche Cayenne
Navigation, Turbo II Wheel Package, 20% tint, Eibach Lowering Springs, Extended Olive Wood Trim

'06 X5 4.4i
Premium Package, Cold Weather, Heated Steering Wheel, CD Player, Hi-Fi Stereo, Navigation

GONE: '06 X3 3.0
Premium, M-Sport, Cold Weather, Navigation, Sirius, Hard-wired Escort Passport 8500, 35% tint Dinan Pedals, Backup Monitoring