Rally Dash Wiring

I Am Installing A Painless Wiring Kit In My 70 Duster And Can't Figure Out The Wiring Of The Gauges. I Have A Wiring Diagram But It Doesn't Show How The Round Plug That Goes To The Gauges Is Wired. Any Help Or Pic,s Would Help Me Greatly. You Can E-mail To-- [email protected]. Thanks Guys Steve