Originally Posted by Crax

I had it on eBay from Techtronics for 135€ including shipment. It is the same cable than E90 E91 E60 E61 E63 and E87.
I installed it myself, not so hard (6 Philips screws to remove), it takes around 15mn to put in place.
Each time you start your car, you still have the motion protection. You have to press "Menu" for 3 secs to unlock.
It look like this.