Ok, I checked my TIS CD and there are articles that teach you how to remove some window trim. This is for the trim on the doors, at the bottom of the windows.
You need tools 00 9 318 and 00 9 324, I'm sure you don't HAVE to have them, but it would make it easier.
It's just that tool 00 9 324 goes into the door and pries the trim out with tool 00 9 318 guiding it.
For the rear quarter window (one looking into trunk), you just need 00 9 318.
The tools are from the Assembly Wedges kit. 00 9 324 is a trim remover (metal plate) and 00 9 318 is an universal wedge.

Edit: Looking at the rest of the articles, it is pretty much using the whole Assembly Wedges Kit (00 9 310) and popping everything out with the removal of one or two other things.

Edit #2: From the almighty search gods, I came up with this too! Pics!

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