How the heck do u get w124 wagon rear door panel off?

[ps2cho]

Its very different than the sedan...

I took off all the normal stuff like latch following the FSM and pulled the face off the ashtray, but I can't seem to get the back part of it off. Does it come off? I didn't want to press against the cardboard-backed vinyl as any sort of pressing ruins it. Unfortunately the FSM only says "remove ashtray" and nothing else. No pictures either so I'm not sure how the back comes off.

I'm guessing that was the reason why it wouldn't budge at all. Any idea how to get it off?

1988 300TE

Thanks,
Robert