There is a steel bar connected to the actuator that feeds to the exterior door handle, it fits into a plastic clip on the actuator and is removed by pulling it towards the outer skin of the door. There is also a bar that goes into a white clip, the clip pops open to release the bar. Makes sure the clip is fully closed when refitting and check the exterior handle works correctly before refitting the door card, if it doesn't then reopen the white clip and push the bar upwards then close the clip whilst pushing the bar up. there's a. cable that feeds to the interior door handle, that needs to be disconnected at the handle end and swapped over to the new actuator once the old one is out. You will see a plastic flap where the cable enters the actuator, pop it open with a small screwdriver and it will be obvious how to remove the cable. Fit the cable to the new actuator before refitting to the car. If your struggles continue PM me and I can call you and talk you through it, It is easy once you have done it
Good luck. Lee.