Hi,
i got it working, but could not find the PDC module, even taking everything out of the trunk.
The solution i got was:
Video module-
white plug
pin 13 - + from camera
pin 14 - shield from camera (-)
blue plug
pin 17 - (-) to trigger front monitor
I hooked a positive and ground from the rear light lamp, and plugged a capacitor between the positive and negative (to eliminate the flickering due the pwm).
The positive from the rear lamp triggers the relay coil and is connected together to the positive power of the the camera. The negative from the relay coil is connected together to the ground power of the camera and to center contact of the relay.
When the car is put in reverse, the relay is triggered, the camera gets power, and the the pin 17 of the blue plug gets grounded.
Attched the photos from the final work and the result.
BR.

P.S. Where is the pdc located at the E53 4.8 is 2006?

Attached Images

    

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BMW E53 4.8 IS 2006 -