Happened to come across your YouTube video a little earlier (before seeing this thread). Appreciate the post up!
It’s typical for the cams to be ‘professionally’ installed on this side of the globe, but they essentially ran the same line and equally complained about how hard it is to get the cables from the rear (D?) pillar into the tube that connects to the boot lid for this G05.
Edit: sorry only realised afterwards this was a June thread...