Mike, Power is coming into the headlight switch. When pressed in, the power is transferred to the fuse # 2 and #8 which is feeding the a terminal collection center off the rheostat and is going to all the parts you mentioned. One side of the rheostat is a collection center but normally not the main problem for anything except the dash light. I suspect the head light switch with a combination of fuses is the problem. It may need cleaning which would require taking it out or replacing it and then clean it to have a spare. This is why it goes bad. It's carrying the load for a lot of lights. John Hervey