Car won't start when cold

This is first a starter related problem.So the parts involved are the ignition switch and starter relay,and the starter.Get you self a starter button,a remote type button and install that to try when its cold.With the car in park and the key on,try it.If it does not start,with the starter button directly on the starter and the key on,hit the button.If it starts to turn over,the problem is most likely the relay or switch and not the starter.Also check with a freind if signal is getting to the relay,with a test light,Mrmopartech