If you have window winder, take that off.
Door pull handle has front plastic cover, pry that off and undo two bolts behond.
Remove screw near bottom. Use thin spatular or trim tool to prise trim from door along bottom. Once it all feels loose, push up off window rail. Disconnect any wires and handle cable. Lift away. You will be faced with a big metal sheet bolted to the door. AAAGH !