Ouch! that looks nice and easy, not. However just added another issue above. The reverseing light is in the boot door and you
have to (I believe, unless I could ID it elsewhere?) run a wire to it.
Check it out. Another VW interior trim nightmare. They really don't like you retro fitting these do they!
Hatch lid are probably the easier one to remove but do take quite a bit of force. trouble is to yank it hard enough just a few cm, or you risk breaking clips, or cracking the plastic by bending it to far (did both)
Main hatch cover

Upper hatch cover

You can run a wire to a plug at the front near the fuse box, but think this is more of a hassel. I'm busy removing trim to get to that too...