Could i just buy a door actuator off of any one of the doors of the is300 and just take that motor out and put that into my driver front door? Or does each door on the is300 have a different sized motor with flat shaft? It seems each door lock assembly for each door is different but the motor inside is the same right? It's funny that in my 2002 is300 the doors dont lock when you put the car into drive. My 2005 locks when put into drive but i never lock my car anywhere i go including my driveway and at work. If this was my 2002 id still have new motors from never locking it.