ignition switch question

Hello, I have a 1969 dodge dart Custom with 318 that I pulled into the garage after a carshow and it has not started since. It has an aftermarket key switch that also uses a push button that has over the years wiggled loose . As it wiggled 1 wire came off must be run, but when i dropped it down from under the dash 2 more fell off so I am rehooking it up , I need to know where the factory wire colors went because the back of this switch is clearly marked and the original wiring is basically in tack.