The ignition switch on my 1990 300TE wouldn't turn to start so removed the whole assembly for repair. In disconnecting the electrical cable I didn't know the key had to be turned to the proper position to disconnect the cable. The connector at the end of the cable came apart and the terminals were loose. In the cramped space I got the terminals misarranged. How can I learn the proper position for the terminals in order to reassemble the connector head properly?