on my 1985 Chevy pickup. I have a dimer switch on the steering column and a pull switch to turn on the lights. Well first my head lights quit working because my dimer switch fried so i crossed wired them to were my brights stay on so i could get to work. Well a couple days ago my head lights and panel lights stopped working. I took the dash out and found out the yellow wire from the dimer to pull switch looks burnt. So what do i do to fix it. Thank you