I have a 01 LLBean Wagon and the review mirror no longer auto dims. My son gave me a mirror off an 04 Subaru, it came out with one screw on the bottom. When I went to remove the LLBean mirror I found a hole on the bottom but no screw. I popped off the bottom cover and discovered a screw , instead of going into the mirror vertical from the bottom, I could see screw thread going horizontally. I have no idea how to get to the screw or what to do. Any ideas? Thank you!