sunroof leaking

[ZiggyPA]

The sunroof leaks at the rear drain tube. The tube seems awfully loose. Does anyone happen to have a picture or description of the assembly before I take the headliner off tomorrow?
Is it even possible to reach or fix the drain tube without taking the complete sunroof assembly out?

[maxwedge]

If possible I would suggest a Fischer body manual here.

[ZiggyPA]

Luckily enough, the repair was relatively easy.
Remove the rear quarter panel, and the door rubber strip.
The handle/light on the headliner has 3 small tabs. Pry them out carefully, they are actually plastic pins which hold the headliner to the roof. Then carefully pull the handle out of its sockets. At this point there is enough room above the headliner to see the drain tube. Mine came loose, as I suspected (it leaked badly suddenly).
There is just enough room to connect the drain tube.
Test it for leaks by pooring water in the gutter of the sunroof.