Take your time and work it out little by little eventually the tab will snap and the actuator will almost fall off its mounting rail.
Remove door panel 2001 f150.
Remove the door handle by unclipping it from the door panel on the rear side of the panel then slide it through the panel.
Slide the looooong screwdriver in there and start prying it out.
Grabbing the entire door panel slide it up and then pull it off but still support it.
Un clip any wiring harnesses from the switch panel.
If you look at the actuator you will see it is slid up against a metal plate.
Remove the two bolts on the bottom of the door panel figure 3.
Once the door panel is off you ll need to remove the door speaker by unbolting it and then unclipping it from the wire harness see figure 4.