Wiring diagram for gas gauge and temperature gauge?

Hello, Well I recently bought a 69 Barracuda and love it! However one thing is really bothering me, temp gauge and gas gauge do not work. I did a visual inspection and all I can see is that they are disconected or missing some type or regulator.

I've been searching around the web and the forums and did find some wiring diagrams and other temp and gas gauge related threads, however not an actual reference as to which wires connect in which pins or what is exactly missing back there :?

Does someone has a picture of the back of your gauges already connected and fully functional or an electrical diagram that is comprehensive and can show which color wires connect were on the back of the gauges?

Thanks in advance.