Kyle Kanter

I have a 2008 Sierra truck. The issue I am having is none of the functions from the driver door work. I can not operate power windows, power locks, power mirror - for a little while it would only work when the door was closed. Also with the radio, normally when you park and shut off the vehicle the radio will continue to play until you open the driver door. Currently my truck does not recognize when the door is open or closed. Older vehicles had a switch for this j in don’t know how this vehicle recognizes when the door is open. Any help is appreciated.