The door lock actuators are not that hard to install. First remove the door panel and then once the door panel is off, punch the center out of the rivet holding the actuator to the door, then drill the rivet out.
Next, unbolt the door latch. You don't have to remove it, just take the 3 bolts out that hold it to the door. Turn the latch sideways and remove the door lock actuator.
The rivit that holds the door lock actuator is on he same side of the door as the door latch bolts. It is below the door latch.
Ok. The actuator has a rod that attatches ti the latch to lock and unlock the door. Grab the actuator and feel where it connects to the door. It has a bracket that it is attached to and the bracket attatches to the door. This bracket is near the electrical connector. See below diagram. Actuator is #7 in the diagram.