You will have to remove your door panel to get to the screws on the back.
To do this first take your switches out, use a flat tip screwdriver and through the back end slide your screwdriver in to unhook the switch panel. Next losen the screws on the switches and remove the center one. Once the switches pop out place the center screw back so you will not lose. Then unplus the sideview mirror and set aside the switches.
Next remove the red and white light from the panel. Once your done with that you have 5 large cross tip screw to remove. Three are located through the switch opening and 1 each through the light openings.
After that all you need is to pop the panel from the door by using a large flat tip and stricking it between the panel and the door. Softly slide the driver until you hit the plastic holder then just pull apart from the door. Repeat process all around the door.
Once the door panel is off turn around and you have several hex screws holding the armrest undo those and replace in reverse order.
Hope this helps