Does anyone have an idea how to remove the mesh where the dash meets the windshield?

Im speaking of part # 11, 12 and 13 in the above image.
I have this crazy little rattle that I *think* is coming from there, so I want to remove the piece and do an inspection.
Problem is on the coupe, the windshield is so raked theres no room to experiment with different ways of removing those pieces...
.. so I was hoping for someone with experience or access to some kind of mercedes document on how to do this could help?
Thanks so much!!





