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06 Silverado Air Temperature Sensor

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Posted (edited)

Hello, I have a 2006 Silverado 2500HD and am looking to replacing my generic rear view mirror with one with the compass and temperature read out. I know the air temperature sensor is located behind the grill at the center of the core support, but where do the wires run before going to the mirror? 


EDIT: Wiring connects to pins A3 & A4 of the relay block to the left of the steering column.

Edited by dj_bosse

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The encouraging thing is that the wiring doesn't route through a controller, but routes directly through a relay block to the mirror. So adding the auto dimming compass and thermometer mirror is possible. I had to take mine apart and resolder a couple of joints, so got to see inside it. The compass is internal and about all you need otherwise is the thermometer input (the air temperature sensor).


I strongly suggest you use a stock wiring harness which plugs directly into the relay block.


Good luck.

Mirrors Inside Rearview Mirror Diagram 1.gif

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