Hello I have 2002 Mustang v6. I have a few problems I’m trying to fix. The dome light does not come on when I open the driver door but it does when the passenger door is open. But if the driver door isn’t open and I press the button for the windows the dome light will come on. Also the driver window and the knob to adjust the side mirrors don’t work. What’s steps should I take to troubleshoot these problems? Could these problems be caused by a short?