Hi,
I have a 2018 2500HD (Australian right hand drive converted) and when I plug a trailer plug in the infotainment screen displays the rear view camera. I am unable to disable this feature so I can use this screen for anything else, I have tried pressing and holding buttons in combos and all to no avail.
I have checked the trailer plug on the truck, and there is nothing there that shouldn't be (additional wires etc).
Can anyone tell me how this is done or how I can disable it? Is this some wizardry with jumping connectors in harnesses or something?
Any help much appreciated!