Where can I find the wiring diagram for a 1984 Ford E350?

I've just purchased a 1984 Ford E350. There are a couple of wires disconnected. One particular wire starts from the box that the voltage regulator is attached to. I believe that it should terminate at the battery but I can't be positive without a diagram.Where can I find the wiring diagram for a 1984 Ford E350?painlesswiring.com or haynes manual at autozoneWhere can I find the wiring diagram for a 1984 Ford E350?get a haynes manual on ebay or haynes.comWhere can I find the wiring diagram for a 1984 Ford E350?Go to the local library and ask to see a repair manual for your car. That is much less expensive than buying a manual.