This is what I did to replace the rear window seals. These are not instructions. I'm sure someone has the proper procedure. Be careful using the acetone is extremely flamable!
1 Remove rear seat.
2 Remove rear panel.
3 remove top frame, 5 big phillips srews.
4 Separate the felt holder from frame.
5 Remove felt
6 Remove window from frame. Two phillips and one 10mm bolt.
7 Slide window out.
8 Remove slider frame, or whatever the name is. Sorry for my ignorance.
It has two bolts at the bottom.
9 Its tricky but you have to move the elevator up and down, to slide the channel out of the frame.
10 Remove the other felt.
11 Soak the old seal in acetone, IN A WELL VENTILATED AREA, to remove from the window frame.