I have a 2015 Silverado HD and recently the windows would stop working when I start the truck. I have also noticed at the same time this happens, my interior light does not work with the drivers door and when I kill the ignition the radio will not cut off when i open the door. The switches for the windows do not even light up. The problem comes and goes but has recently gottten much worse. I am currently thinking it is the door open switch due to the other 2 problems but not sure why that would affect my windows. Can any one help? are they all the same issue or different issue that come and go together?