Are you sure it is the door panels?

A common creak point in the 124 and 201 is where the seat leather (or 'tex) contacts the plastic trim on the side of the seat cushion (when you are sitting on the seat), creaks and sounds nasty.

Try putting a little silicone grease (aka: plumber's grease) on that area of the seat sides (both sides of both seats) and wipe it off again to see if it changes. Aerospace 303 protectant should also work, possibly silicone spray lubricant on a paper towel, ... you get the idea.

I'd kind of hate to be right with all the work you've put into the door panel though.

__________________

Gone to the dark side

- Jeff