Inside rearview mirror? Or outside?Inside, yes - several of us here, myself included, have installed different types of electrochromic mirrors. Like you, I'm not fond of mirrors that do not dim themselves. If you're talking about the inside mirrors, here's one good howto here:
http://forums.genvibe.com/zerothread?id=7735And a picture of the one installed in my car: A set of auto dimming mirrors for the outside do not exist, as far as I know. I've looked, but nothing... Not available as an option for either Vibe or Matrix, nor have I ran across any aftermarket mirrors. That's a bummer, since I do have problems with glare from the outside mirrors at night. Hope this helps, but it probably won't if you're like me and want a set of auto dimming side mirrors.