When we bought our new (then) 2003 Honda Odyssey EXL there was an auto dimming outside temp, compass mirror as an option...and if I remember right, it was well over $300.00.
I bought a Donnelly for about $175.00 with all those features and found out surprise-surprise, it was the same brand that Honda puts in as the option.
That was my first mirror install, and it took a couple of hours of groping around under the hood and the front dash to get everything hooked up.
When we got the Versa, the first thing I did was order another Donnally and this time it went in in about half the time with twice the fun.
There are other cheaper units out there that are Ty-won John knock offs, but they are not worth the time and trouble to put in.
Sometimes you can find the Donnellys on eBay, plus the other brands, but this one will work for years and never give you stupid readings, or washes out in the daylight like some of the others.
Just cut and paste this for an eBay search...
DONNELLY AUTO DIMMING MIRROR W/COMPASS &TEMP NEW CHEVY FORD DODGE GMC NISSAN..
This is the same guy I bought my 2 off of and I see they are now about $40.00 cheaper for the same mirror...
Here's a few other personal options I have added to the V...[Use the 'Slideshow' option to auto scroll and enlarge the pic's.
http://picasaweb.google.com/longo3002
Modified by longo at 10:59 AM 3/18/2008
Modified by longo at 11:02 AM 3/18/2008