Instrument cluster wire question

[4EyedTurd]

I'm in the middle of swapping in a tach cluster in my 83 and noticed that on the printed circuit there is a circuit that runs to one side of the oil gauge, temp gauge, fuel gauge and the small silver box. Well, it doesn't have a wire hooked to it in the harness plug, should it?

 

[85_Ranger4x4]

You know the dash harness connectors for a tachless truck are pinned completely different than a tach cluster right?

If that is how it was on the donor I would try it and see if it works.

 

[4EyedTurd]

Yes sir, I'm repinning it all right now. Original cluster didn't have a wire but new one does