That was very helpful 4Crawler! Your whole website has tons of helpful info as well...

My relay has:

85-power from cab ignition switch
86-grounded to fender
87-? does this have to be connected to something?
30-from the website I am going to connect the yellow wire from my fan to this...

The previous set up has the power wire from fan go to a 30A fuse and then connected directly to battery.

The other side of the fan is grounded.

There are two small grey wires that look to be connected to a sensor that is held close to the upper radiator hose via a rubber sleeve

There is a small green wire that goes nowhere...could this be to turn the fan on when the AC is on?

There is a small yellow wire...the one I am trying to figure out...

Before I ruined it...the fan came on automatically and I would like to keep it this way if possible. The yellow wire was the only other wire that was connected. Will this work?