OK so the wipers on my 82 Fairmont Futura dont work. They are pretty picky about em workin to pass an inspection so I need to fix em. While I have my head up under the dash rewiring my horn I hit the wiper switch and they start working (the key is in the on position), so I am all like cool, one less thing to F with. So I start the car, and they stop, huh? I shut it off and leave the key in the on position and they start working again. So basically when the key is on but the engine isnt running they work when the engine is running they dont. Any ideas?