Checked the stickies and I do not see any info on how to remove the trim on the inside of the rear window, the grey piece on each side. BTW, if the front pieces are A-pillars, then what are these called?
Thanks,
Jason.

 

you need to take your seat cushion off. then unbolt the side bolsters, they are heald with one bolt on the bottom, below the seat cushion. the gray pieces will snap off. they are held with plastic clips. pull gently, and don't jerk, in order not to snap any plastic pieces.