The connector plugs used on the Scirocco Rear View Camera are reversed between the RGB and the Composite video versions, so the "opposite" plugs are required for each camera (detailed separately in Parts List)
In the Scirocco installation, the plugs are externally mounted under the rear bumper, so they come with waterproof connectors and FAKRA plugs.
On the .:R32, the camera cable is long enough to run through a convenient blanking grommet at the right rear side of vehicle (directly under sunroof drain plugs grommet)
You may wish to run the wires through an existing grommet and seal it, but there is also a replacement factory grommet 1J0 971 913 A available to fit in the hole with a proper waterproof tube built into it
Once the harness is inside the car, the Scirocco uses another premade harness to run from the back of the car to the factory headunit.
Because the composite video version has the opposite plug to this main harness, it has to use another short adapter cable as well to mate to this main harness.
To avoid all these complications, I cut off the waterproof FAKRA plug and installed a normal FAKRA plug that will now be internally connected and mate directly to the purchased 5-metre repair cable 000 098 656 to run from inside hatch area to the headunit along the right side sill panel.
This is my modified Scirocco camera harness with converted FAKRA connectors and grommet for rear beaver panel under right tail light:
Compare this to the photo in Parts List to see how I have modified it from standard.
Many vendors sell FAKRA plugs to do this type of conversion, but you also need a special pair of pliers to strip and crimp the wiring ends correctly.
Mouser now sell the proper Rosenberger (OEM supplier) coaxial FAKRA's in all the proper coded colours:
Link here for Rosenberger connectors.
They are identical to the generic water blue coloured "universal" FAKRA plugs that VW can supply.
The specific green FAKRA plugs for the coaxial cables that I used are Rosenberger 59Z113-000E (female) and 59Z064-000E male.
The Scirocco camera also requires a separate four pin plug for the required power, negative and reverse feed to work. All these connections are available in rear of vehicle.
Original Scirocco wiring goes to a normal 30+ feed. Not sure why 30+ is specified, possibly a throwback to the wiring used in Golf's with flipper camera in rear handle, which would require 30+ for their operation to close the flipper handle after ignition is switched off.
I chose to use the T23/20 feed located in the rear hatch light supply, which is controlled by the Comfort Module as my power supply for the camera. This connection is disabled once the car is locked, so there is no excess drain on the battery from the camera.
Original pinouts on Scirocco camera are:
Pin 1 = Red = Fused 30+
Pin 2 = Brown = Earth 31
Pin 3 = Vacant
Pin 4 = Yellow = Reverse signal (RL)
Reverse can be obtained from rear light assembly and earth goes to earthpoint on left C-pillar.
If you obtain a 2-pin plug number 1J0 972 702 it can be plugged directly into the one of the sockets on the right rear tail light housing to pick up the "RF" reverse signal without cutting any other wires (refer to diagram here for all the available connections).
I found this aerial cable holder 1K0 937 545 M to secure the FAKRA plug connection from the camera that I clipped into an existing spare sheetmetal hole near the tail light and locked in place with a random circlip (as this particular hole was slightly too big for the cable holder).
The cable to the front then runs up over the wheel arch and is taped to the existing harness in there, following the main harness behind the quarter panel and along the right sill panel, then up the A-pillar and across to the head unit.
Then after all that hard work, you end up with this: