Just noticed something that may have been like this for a long time and I didn't notice it or just started. On my 62 Plymouth, when I pull the headlight switch out one notch the parking lights come on fine. When I pull it all the way out the headlights come on fine - but the parking lights are not on any longer. Before I go tearing into the wiring - does this sound like a wiring issue or maybe the switch is bad????