1995 Suburban 4x4 LT K1500 350 motor The interior lights intermittently short out. All of them go out at the same time. Then, a few minutes or days later, they will work again. Also, I don't know if it helps any, but the driver side door doesn't trigger the interior lights when I open the door either...even if they are otherwise working. I realize that I have a short somewhere, but if anyone can give me an idea where I should start looking, it would be greatly appreciated. Thanks to everybody in advance.