Need help with an electrical puzzle

Man, is my back aching. I've spent hours lying on my back in the floor of Aaron's car pondering this...trying that. Finally, everything electrical on the car works correctly, except the instrument panel lights. Well... actually, the map light is still acting goofy, but I'll figure it out eventually.

Would the voltage limiter on the instrument cluster cause the lights not to burn, or is everything pointing to a bad switch?

Jerry