Electrical problem?

I replaced the the switch a few months ago and cleaned and put dielectric grease on the bulk head connectors awhile back, I did wiggle all them wires and nothing happened, the only place the car shut off was at the ignition switch connector under the dash? and it seemed to be on the dash side of the harness. I think you are right its the switch connector. I'm not the best at electrical diagnostics so all the help is greatly appreciated. The worse part is I just rebuilt the engine a few months ago and it is running like a bat outa hell. No there is no other charging problems.