I went out to move the wagon on Friday. I turned the key and nothing. I have full power and lights but it wont crank. I left the key in the on position and jumped the S terminal to the batt. terminal on the starter and it fired right up. I unplugged the wires at the firewall and cleaned them and still nothing. I think it might be a bad ignition switch but I need to get under there with a test light. Any thoughts??