Not sure, that lead looks like it only uses the TV modules AUX in as the AV in, you can adapt it to have the RV camera as well (at a guess).

The revese camera normally plugs into the TV module via dedicated pins, you may need to get a couple of pins/wires from the dealer and hack a phono lead up and make one (pennies) and connect it to the white plug (pin 13, camera in, pin14 camera GND) and for the auto switching (when you place the car in reverse) you need to use pin17 (blue plug) to GND, as the auto trigger.

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.