Disconnecting the door handle cable is pretty simple.
How to remove rear door panel on 2013 f150.
A hooked tool will keep you from scratching the door panel around the handle.
Remove all screws at the bottom of the door panel.
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.
Remove the two bolts at the bottom of the door panel using the 6 mm socket.
The door panel is almost ready to come off at this point.
Looking to remove your factory interior door panels.
Lift the door panel up to disengage the tabs that hold it in place.
Remove the exposed bolt using the 8 mm socket.