Brought my new, actually old, '69 C-10 home a while back and noticed that when you turn on the parking lights or headlights that the turn signal indicators in the dash light up, but the front parking lights don't work. It also looks like the turn signals are flashing the parking light filament in the front. There are no apparent crossed wires at the grill connections. Anybody got any ideas on what might be going on? I haven't recieved the wiring diagrams that I ordered yet, so I can't even use them to try to figure it out right now.