No one has a pin out or diagram? 
Cluster issues, No fuel guage, no signals and no warning lamps. Was very bright out couldnt see if dash lights were working or not.
Seems like there is 3 powers and 1 ground present, but I have no idea if this is all, or correct.

If everything is dead check the fuse or the lands on the circuit board.  I could not find individual pinouts in my books. 

  I thought that too, but radio does work, signals do work on the exterior, just not on the cluster.

It's a voltage regulator for the gauges, the indicator lights are straight 12 volt, the gauges thinking 5 volt. If the copper on the contact points for light sockets is dull looking, take a rough pencil eraser and erase the contact area to a bright copper color, that cleans it up to carry power, often lights will then work. Do the same to the contacts on the bulb socket. They oxidize and then quit working and common. You can slightly bend the socket contacts out further to make firmer contact too.

I would assume put 12V on the regulator input side and provide any ground needed there and then read the regulator output........ .............. ...output side would be the gauge inputs.

There may be a resistor in there too for the alternator light thinking 500 ohm? It's the balance point for the alt input vs. 12V battery power, when they balance close to equal the alt light goes out.