has anyone replaced the rear hatch actuator motor themselves? I've done some prying and cutting (plans to make fold down table) where necessary and have contact with the actuator now. but the problem his how do I actually get inside it to replace the motor. should I just rip the thing out and get a whole new actuator which is way more $$ than just replacing the motor inside? Has anyone done this themselves? oh and its a 2010 gx460.... thanks