First off how do I remove the door panel? I'm sure it has been asked before so any links to the information would be great. Second, my auxiliary fan, quit working on low speed so I guess it is the resistor? The main problem is on high speed it shakes the whole car. I would assume the bearing is going out since all the mounts are tight and the blades seem to be fine. Ideas, comments welcome because I refuse to spend $500 for a new fan. TIA ---Dean