if you have F10 F06 CIC system installed NBT or EVO system and it does not turn on....

First you need to find Canbus wire.

This wire looks like this :  yellow with red and yellow with brown Twisted wire

Please find your car ZGW module, that is located under the steering wheel.

Unplug connector no: A51

With thin flat screwdriver push out these locks, then you will be able to

Slide out connector wires.

after removing these wires

slide them to sides to separate these two connector lines

After you remove this  you need to separate these two rows

notice numbers on the pins. from 37 to 54

you will find YELLOW with RED stripe, - Pin no: 48

And   YELLOW with BROWN stripe, - Pin no: 49