What is the wiring diagram going into the dash cluster on a 1970 Camaro Z28 with tach and gauges?

It is just a thin 'sheet' that fits on the back of the cluster & has a plug-in attachment. I have a 70 RS/SS, rebuilt from ground - up. I never liked all the gauges all over the place so I wanted all the gauges in the dash - got mine at a local junkyard :)

*Skylla*