Finally finished setting up my reversing camera for the VMS X506 in dash unit in my 2008 GU Troll. I used I CMD17N from Parkmate and it tucked away nicely underneath the Patrol badge in the left barn door with a 19mm hole saw.
There is an error on the Haynes manual for Patrols up to year 2011. According to the service manual you can remove the GU Patrol Badge without removing the rear panel from the left barn door, this is not correct; at least not for my model. I had to remove the whole panel as shown on the pictures.
Cheers guys!