I purchased a  Collins MM-1 with the cord cut off right at the spring.  I have a replacement cord, it has 4 wires, red, green, black and white.  I also have a cut off PL-68 for the connector, it has white-tip, red-ring and black-sleeve.  I am asking for help making the connections.  The mike has not arrived yet but I suspect inside will be wiring of a standard color.  Any help appreciated.