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Daniel Jones
Daniel Jones,
Category: Chevy
Satisfied Customers: 500
Experience:  GM A Tech at Straub Buick GMC
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I have a 2007 Colorado with an onstar mirror with courtesy

Customer Question

I have a 2007 Colorado with an onstar mirror with courtesy lights and I believe auto dim feature. I have a mirror from a 2010 Colorado with onstar and temp/compass reading that I would like to install. I would like to know what #2(clear),#6(white),#10(gray) do on the original mirror and what #9(brown) does on the replacement mirror. They are both 16 pin connectors. The rest of the wires are identical and in the same pin positions. Thanks
Submitted: 1 year ago.
Category: Chevy
Expert:  Daniel Jones replied 1 year ago.

Hello. Welcome to the site. Thanks for coming.

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I'm here to provide as much information and insight as I can, to best answer your question.

Do you have VIN#'s from the vehicles?

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Expert:  Daniel Jones replied 1 year ago.

Here is the wiring diagram for the 2007.

Expert:  Daniel Jones replied 1 year ago.

Here is the wiring diagram for the 2010.

Expert:  Daniel Jones replied 1 year ago.

2007 Onstar wiring

Customer: replied 1 year ago.
the vin on the 2007 is 1gcdt13e078227173, I do not know the vin for the 2010. I just want to know what those wires I listed do on each pigtail for each mirror. I have the same schematics that you sent me already. I have seen pigtail number listings, but some colors don't match and they seem to be only for mirror with temp/compass. Thanks
Expert:  Daniel Jones replied 1 year ago.

#2 Clear is drain wire for microphone

#10 is Microphone signal wire

Need to do some more checking on others

Can you send pictures of both connectors at wire end

Customer: replied 1 year ago.
Here is a picture of the plug diagrams. Top is pickup end and bottom is mirror end.
Customer: replied 1 year ago.
Hopefully this one is bigger.
Customer: replied 1 year ago.
top plug is 2007 Colorado - bottom is plug from 2010 colorado
Customer: replied 1 year ago.
I have not heard back, wondering if you received drawing of diagrams? top drawing is numbered diagram from 2007 original mirror pigtail with on star/courtesy lamps. bottom drawing is numbered diagram from 2010 Colorado mirror pigtail with on star/compass/temperature, possibly auto dim feature. I will be waiting for response. Thanks