Yes that's the actuator, and you must have cursed mine maxcaddy!! It's started doing that very loud buzzing when it locks!! But not when unlocking.... So a new one is here for when I can get the time!! I can't remember accurately but there are a "few" Philips head screws, then the door card starts popping off (loudly) from the bottom, then lifts up over the door locking pin and window ledge and away. Quite probably there will be some Town & Country versions jobs on youtube of course.