No AC, Heat, Traction control, Tow Haul mode and no Engine Brake

[Taji’sRam]

Ok i hope someone can help me I have a 2019 ram 3500 dually I upgraded my the small radio into a 8.4 and everything worked find but I went to install the cargo camera the radio ac heat traction tow haul mode and engine brake stopped working. “ i think this may have to do with me putting the hazard light cord into the screen and the screen cord into the hazard lights “ I hope this can be fixed. Ok lets move one ok So I took the radio out and put the original one back in The radio work fine but everything else still not working . I didn't want to reset anything cause I don't know if it will mess up the tune. When i bought the truck from Cobb luxury cars they didn’t state that the truck was deleted. Can someone shine some light for me and help me try and figure this out