Adding a Bed view camera for Hitching

[GMC4Zee]

I have mounted a camera to aid in hitching my 5th wheel inside the cab looking back. Need some advice om best solution for a 12 volt wiring tap thats only on with key. I see there is a wire harness tucked behind the rear seats. Does anyone know if it contains a 12volt source wire? Went with in cab due to fact it could be stolen or tampered with. Window defrost lines do not inpact image.

[GMC4Zee]

Wow , 40 views and no advice? Guess I am on my own with this one....

 

[Davidj101]

I looked thru the upfitters manuals and I don't see anything back there except the connector for the High mount lights. I didn't find out what all was in that connector. 

[Weezy]

Did figure out the wire. My only thought would be tap into the cigarette outlet in the center console. 

[silveradosid]

you could tie it into the cargo light, turn on the cargo light and power on the camera. you would also have to do the cargo light on with reverse light mod, which is putting in a diode