Old thread, I know, but if anyone else finds this like I did, the simple and inexpensive solution is to get a Burko replacement. It just sticks on over the existing (broken) mirror, but it has holes for the blinker display (if your blinker is in the mirror) and it only costs around $20 on Amazon. It is custom fit for whatever car you have. Their website has a lookup for your make/model. I don't work for them... Just found it and figured someone else may want to go that route.