Porsche 944 gauges

[mbartell]

I got a set of 944 gauges off of ebay, and the speedo and tach look pretty easy to hook up. I was wondering if anyone has tried using the combo guage too. It has fuel, 6 warning/indicator lights and a temp gauge.
I've been trying to map out the connections on the back and am having some problems figuring out everything.
It has 12 pins in a circle, and I don't have the plug that goes into it. I figured that I could just solder to the terminals and use it anyway, or try to find the correct plug.
Where can I find a wiring diagram that would have the pin out?
I have figured out which pins work all the lights, but the guages are a little harder.
Plus, is there any diffrence between the water temp guage and an oil temp guage besides the sending unit? I figure that electronic guages all work on the same principal, and the sending unit would be the important thing.
This is going into my 1971 superbeetle, and I still haven't made the custom dash- I want to get the gauges working before I really start working on it.