Recently bought a 2012 Traverse LT1. Standard Onstar mirror. Is prewired for the camera. My brother and I found the connector in the back hatch, Good we thought. Did buy the factory Onstar mirror w day/night hookup and with the backup screen. Also bought the GP-KD5G09RC backup camera in the factory handle. Something just did not seem right with the factory harness. So i ordered a 50" roll of 18 gauge 6 wire stranded with shielding and the bare wire. The mirror and the cam are used from Ebay. Have the mirror functions all working but the LCD screen. Test the camera out alone works great. We got it to work through a small test screen I use to install Out side cameras. Had it working to where you put the vehicle in reverse I would get a picture on my monitor but never on the mirror LCD. Even bought a second gm mirror still no image. 6 wires from the camera harness. I know the 4 wires that feed from the camera eye itself that means the other two are for the relay inline with the camera. The harness to the mirror has two wires open pink and lt blue. Tried every combination I can and no image. Ready to just hang the newer mirror and forget the rear camera. It does have the rear sensor backing package but would be easier to see with the camera. I cannot find an accurate pin out for the backup 6 wires or the harness for the mirror. Help................Did not think about pictures, can do that tomorrow if anyone thinks it will help. Thanks ahead of time.