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Rear View Mirror Wiring

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Old May 30th, 2019, 5:06 PM
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Default Rear View Mirror Wiring

I have a 2013 4WD Silverado with OnStar, HomeLink and Auto dimming mirror. I need to tap into the wires for ground and power (when the ignition is turned on) on the back of the rear view mirror for a Radar Detector. Can anyone tell me the correct wires to use?
Old May 30th, 2019, 5:41 PM
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BBB Industries- Premium Alternators, Starters, Power Steering Products and Turbochargers | TSB and Wiring Diagrams Database
Old May 30th, 2019, 7:34 PM
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Sorry, I must be missing something, no rear view wiring diagram?
Old May 30th, 2019, 7:53 PM
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2013-Chev-Silverado 3500HD

Interior & Driver Amenity

Electrochromic mirror
Old May 31st, 2019, 10:02 AM
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Thank you. I found it using your parameters. Unfortunately reading the diagram is harder than I expected.
Old June 1st, 2019, 3:19 AM
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Which part are you having trouble with? There's no science to it.

The fork looking symbol is ground. It's on pin 8. Wire color is black ("BK"). Black is almost always ground.

"IGN" is power with the ignition on. It's on pin 13.It says "PK" which I presume is the pink wire.

The connector on the mirror should have small number printed on it denoting the pin numbers. Usually the numbering starts on the top left.

Last edited by mountainmanjoe; June 1st, 2019 at 3:22 AM.
Old June 1st, 2019, 8:32 AM
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Thank you




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