Remove the exposed bolt using the 8 mm socket.
How to remove rear door panel on 2013 f150.
A hooked tool will keep you from scratching the door panel around the handle.
From here you lift up slightly on the door panel to begin removing it but the door handle cable will still be connected to the door handle.
Disconnecting the door handle cable is pretty simple.
Video shows how to remove a rear door panel.
Remove the two bolts at the bottom of the door panel using the 6 mm socket.
Lift the door panel up to disengage the tabs that hold it in place.
Looking to remove your factory interior door panels.
This picture shows one of the screws at the bottom of the door panel that hold it to the door.