Why not cook marshmallows on my under dash fire?

I had the same problem with my 68 dart. Took the harness out and repaired all the burnt wires ( or should I say I thought I repaired all the wires), put it back in and still had problems so I bought a harness from Year One which solved the problem once and for all. Make sure to check the under the hood harness as it is probably toast as well as mine was!!