2 ignition switches and still no run

I don't know what type of vehicle this is (what year??) but I think it would be best to find some kind of basic wiring diagram for the key switch and possibly the ignition system. At that point you should use some sort of digital volt meter to test the switch and the ignition system wiring. Make sure that the ballast is wired correctly. Test the switch for continuity and resistance and check the resistance at the bulk head connection. Oh, make sure the ground wire is connected from the engineblock to the firewall. Good luck, hope this helped.