removal of rear door panels
#3
Remove door panel
First if you have an extended cab you need to unscrew your window latch the the upper half of the door has clips that snap into place pry until it comes off. remove screws if there are some on the bottom half. I think 2-4. Then slide the panel up. Don't pry I almost broke mine. I haven't tried the front yet so no advice there.
#4
Dazed and Confused
What year or truck and what type of cab? If a 2011 SCrew there are 4 screws. One behind the cover plate under the door release lever. And one under the cap in the bottom of the door hand hold. Use a small bladed screwdriver to pop off the covers. Then 2 screws at the bottom. The panel lifts off.