I may have found one issue under the dash. I found a wire going into the headlamp switch with melted insulation. It is the pink wire. After I fixed the end, I turned on the headlights (all the way up) and I had lights but no parking lights. Then I tried the parking lights (mid position) only and I could not get the parking lights to light up until I pushed in on the switch and then they would flicker. It appears that I have an internal issue with my headlamp switch.
I know that they are not made new, so what are my options?

Thanks