Perfect! Thank you for the info. Yeah, I saw that previous post after I had already sent mine. I'm thinking that next time I am at the wrecking yard I will just get a second outside temp sensor. I'll hook it up temporarily to the mirror just to see if it works and then go to the trouble of mounting it next to my current ambient sensor and run the two wires through the firewall if it all works. Just to calrify... Pin #6 is the "Ambient Temp Signal" and Pin #7 is the "Low Reference". These are what would make the Temp display work on the mirror? Thanks again for the info and saving a me a ton of time!