I don't have a link to a site or anything. I just figured it out myself by looking under the dash area where the brake and gas pedal are while having someone else change the vent settings. I could hear it clicking and then removed the radio amp to see the part that need to be replaced.
If you can't find it, let me know and I can take some pics and send them to you.
I did my rear one a few months back, and now the front one does it everyday! Now I need to figure out how to get the that one. The rear was easy.
This thread is a little old, hopefully you guys are still around and can help. I replaced the rear actuator the other day with minimal effort, now on to the front. Any pointers, tips, or tricks? Tools I'll need?