Remove the door card, as stated and carefully peel the waterproof membrane partially back to gain access to the latch/solenoid. There is a multi pin connector above the latch...just follow the wires and disconnect.
You will see the Torx retaining screws on the edge of the door, remove them and the latch assembly lifts out.
If you tear the membrane, don't worry, you will not be the first !! just use duck tape to fix.