Mirror Wire Diagram for 2019 Express 2500

[Marsh21]

Hello, I don't know if this is the correct place for this.  But ill give it a shot.  I have a 2019 Chevy Express 2500 Van, and I'm looking to mimic the rear view camera image down to the head unit.  I need to know what two wires out of the 5 wires that goes to the mirror that supply's the video input.  I would like to have the video on with a push of a button on the head unit, so when im driving down the road I can see behind me.  Hope someone can help me out here.

[Zeker]

You may be able to find it in this:

 

https://www.gmupfitter.com/wp-content/uploads/2021/05/19_express_savana_body_builder_SM_U_2018SEP07.pdf

 

[Marsh21]

Wow Zeker,  Thank you so much.  I have been looking for this for months.  I added it to the thread if anyone else has the same issue.

[Marsh21]

Would this make sense?  If I totally removed the 9 wire from the harness and jumped pin 13 to 9, wouldn't that keep on the rear camera when the key is turned on?  This is my end game

[Marsh21]

For anyone that wants to duplicate the OEM camera to the head unit, this is what your going to have to do.

Buy this- https://a.co/d/74nXhUK

*Tap into pin 6 and attach it to the wire coming off of the part from amazon, this is your +

*Tap into pin 7 and attach it to the negative wire coming from the part from amazon, this is your -

*Now plug that wire into the head unit under rear camera

*Now tap into pin 9 and run that down to the head unit and connect it to rear camera 12V (this wire gets 12v every time you put the van in reverse).