[g4bama]

I bought a 2007 silerado and it has a standard rear view mirror in it. I am interested in swapping the stock mirror for the factory mirror with the auto adjust and comp/temp features. Is this a plug/play option or is there some wiring that needs to be done to do this swap.

 

[g4bama]

I am thinking that the system power for the onstar and other funtion buttons will supply power for the compass and auto dim functions. Wondering about the temp probe

 

[Blackout07]

You will need to run some wires. I did a write up on this on another site. See below link.

http://www.gm-trucks.com/forums/index.php?showtopic=108803&hl=

 

[g4bama]

Thanks for the info. I'll round up the parts and see how it goes

 

[AskBrandmotion]

You can get the upgraded rear view mirror and appropriate wiring at Brandmotion:
http://www.brandmotion.com/rear-view/mirrors/auto-dimming/auto-dimming-comp-temp-mirror-with-oem-harness.html