1996 Mercury Marquis Removing door panel

Ok I don't have a pic of your exact door panel but they are all very much the same. First look for any screws in the arm rest part or near the inner door handle along the edges and such remove those then get a door panel tool it is a very simple tool that allows you to get under the push clips or (christmas tree clips) and pop them out. Here are a couple of pics one is the tools they come in different style you only need one then how the tool is used and the third is the panal clips that hold the panel in place, these clips can be purchased at most parts stores as I am sure you will break or ruen some. Hope this helps.
Tools

How it is used

The clips