2008 Mack CXU 613 wiring issue (Window won’t roll down)

I have a 2008 Mack CXU 613 and I am having a bit of a wiring issue. I bought the truck knowing it had a few issues. Wiring was not one of them. Lights and other odds and end things I’ve been able to track down and fix. My passenger window will not roll down. Sometimes when I first get in the truck in the morning it will roll down. But when I turn the truck on and it has vibrations it quits working. The lock button also does not work and I believe the two are connected. When I start the truck in the morning and the window will roll down (sometimes) the lock button will also work. So when one works the other works. The blue light behind the switches are dim. When I press the window switch the lights between the two switches gets brighter . When I press the lock button it stays dim. Sometimes when I press the window switch it kills the light behind the lock switch. Now when I move the power mirror knob it kills the light on both the window and lock switch. Anyone have anything else like this happen and have a idea on where to start looking for the bad wire ? This forum has been very helpful so hopefully we can get this sorted out!