I have a 1990 plymouth voyager and my rear dome light works but my front dome light and mood lights do not i changed the bulbs and got a new headlight switch and still not working im out of ideas

Does the rear dome light come on when you open the drivers door? probably not, look at the door light switch on the area at the rear of the door, the switch is on the body of the van, loosen it with a wrench,it will probably come on while you are moving it, but you may need to remove and clean or replace it.

It's a matter of preference...However for the front dome light, You could always unplug it and run wires from the back to the front essentially making an extension cord. Hook the wires up to the back ,run them under the headliner to the rear of the vehicle by the hatch, then run them along the edge on the inside tucking them under the plastic above the windows. When you get to the front door, you can take off the plastic piece at the top of the door and fish them into the center hole and hook them up. Or continue to tuck them under until you get to the center of the wind-shield and fish them through from there.