Thanks for the quick reply. I've found a used one on-line for $80. Is the electronic module easy to remove from the old mirror and install in the replacement one? Are there any other pitfalls I should be aware of?

My auto-dimming mirror seems to have died. It has a small elongated ellipse near the top that is in daytime mode, but the rest of the mirror is in dimmed mode. I know this is an electronic device - is there a simple solution (like a blown fuse), or do I just need to just buy a replacement? Is there ...