I have a M95 cab tractor, put a new starter on it about 6 weeks ago. Finished up fall hay no problems. Now when I turn the ignition switch on, dash lights come on but as soon as I try to start the tractor, I hear a click in dash area and all dash lights go out and tractor will not turn over. Replaced switch but still have same problem. I am getting 12 volts to the switch. Any ideas where to look next?