Stopped Starting... Stumped.......

You are confused, or at least you have ME confused

You SAID

"I get 12v to the ignition switch but nothing when turning the key to ign."

Are you talking about "run" or "start?"

because PREVIOUSLY you said........

"Jumping it across the starter relay it fires right up."

So you are talking about the START circuit? (YELLOW) What YEAR is your car? seat belt interlock?