Can Somewhere Post a Picture of Firewall Relay

[Upstate]

I have a '84 K5 that I just bought and I can turn it over if I hook up the distributor direct and remote start the starter. But if I turn the key over nothing happens. The relay on the firewall just to the left of the brake booster only has one wire running into it. It would appear that I am missing a wire going /leaving into it.

If someone could post a picture of the firewall showing the wire and where it goes that would be great.

PS - hope to start showing the build soon, but would like to sort out the headaches of not turning over first.

Thanks