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2014 turning stock backup cam on at anytime


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Posted

So I bought an edge evo CTS2 and got the switch EAS with it free. Been trying to figure out where I can splice into to be able to turn my stock backup camera with the 8” screen on at my command. I’m aware it’s not recommended to drive on roads with a distraction like that but regardless, I’ve tried to supply power to the backup lights through the 10A fuse under the hood (didn’t work). was thinking of tapping into the shifter position sender so the computer thinks it’s in reverse without physically being in reverse. Any thoughts?

Posted

Check out MVI navigation they have the harness to do this link below might be other cheaper harnesses out there if I remember right? Not sure you’ll be able to do it without something like this? If you tap reverse not sure you’ll ever be able to get any other screen up except the cam?

 

https://www.gm-navigation.com/shop/2014-2017-gm-tailgate-backup-camera-wiring-harness-kit/

* note you’ll need more than just the harness if you go this route 

Posted

DISCLAIMER: this method has not been tested, I’m just giving you info that you should use test cautiously and at your own risk!!

 

Try grounding this wire, second pic, Blue wire with brown stripe, labeled backup lamp relay control at the BCM, (negative trigger only, DO NOT supply 12v power to this wire), while vehicle has ignition on. This should imitate the vehicle being put into reverse for the activation lighting, and reverse cam functions. The vehicle might not allow the screen to show video image if the vehicle starts to move as the computer data lines will show VSS signals. If this does work, the reverse lights will also come on while driving. There would have to be extra wiring involved to interrupt the reverse lights while switch is on and driving forward, if everything does work. 

 

Having said that, there are probably a few modules out there from companies like Nav-tv or AIS that would provide a solution, but they would be expensive. Use this info as a starting point

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Posted
6 hours ago, wforrest08 said:

Check out MVI navigation they have the harness to do this link below might be other cheaper harnesses out there if I remember right? Not sure you’ll be able to do it without something like this? If you tap reverse not sure you’ll ever be able to get any other screen up except the cam?

 

https://www.gm-navigation.com/shop/2014-2017-gm-tailgate-backup-camera-wiring-harness-kit/

* note you’ll need more than just the harness if you go this route 

I’m wanting to do this without buying anything else like an added harness. I have an edge chip with a switch kit that I’ll be able to turn the cam on/off with so screen will go away 

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