Re: Part Number Request: Onstar, Compass, Dim, Map Light, Mirror
the gentex is identical to the factory ones. i even went to the dealer to make sure. go to google.com and search for 'gentex mirror wiring'. it should give you a link to a post at the12volt.com. you are looking for the 16 pin wiring diagrahm on page 2. there you will find that pins 6 and 7 out the back of the mirror are for the temp sensor. find the colors of these wires at the mirror then go and remove your airbox and find the connector under there, then find your two wires with the matching colors from the back of the mirror (the two temp sensor wires should go to nothing) and unplug it and stick the two leads of your temp sensor at the plug and see if the temp display works on the mirror. then plug the conector back in and splice those wires together and mount the sensor behind the middle of the grill (factory spot). put everything back together and your done! also i used the temp sensor that came with the mirror. running the wires from behind the grill to the connector under the airbox is not fun as the space is tight... hopefully this helps you, the install is really pretty straight forward.
08 GMC Canyon, 3.7 liter I-5, Z71 EC, G80, Sunroof, Fire Red, Loaded. 1.5" shackle/TB lift with 09 17" Z71 Chrome rims.