91' 350 Sdl

[W Black]

I am troubleshooting a leaking air conditioning system. Need to know the location of the system expansion valve. I looked under the passenger side panel cover but it was not readily evident, just the blower motor housing. Aslo, I need to remove the right side rear door panel to repair the window lift mechanism. How does the cover under the door handle come off to remove the arm rest mounting screw and door pull? I tried prying with a small screwdriver but did not want to scratch or deform it.

Thanks