I'm sure the pipe goes from the front washer bottle up the passenger windscreen pillar and in the roof cutter along to the rear and down to the middle rubber sleeve on the back door.
The fur tree clips are an arse and snap and you can also crease the roof lining of you pull on it
To do it properly if drill all the fur tree heads off, use a 6mm drill and right in the middle, the stub is probably 7mm but once you go through you'll find it easy to pull the head off, you'll need to fish out all the stubs when you've finished though save them rattling about.
The roof lining will drop down safely then I'm sure.
You can just yank on it all but the roof lining will crease and rip where the clips are, they're strong as fook.
56 350 2.2 130ps mk7 with 2 side doors
65 290 2.2 125ps custom with 2 side doors
07 350 170ps
Ids v86 licence + v86.04 update + xprog
hereIds map
here