Quoted from Frax:
I'm getting a mental picture of a hundred wires and bare joints all pressed up against each other then the game being turned on.
Trim your harness at an angle, so wire #1 is longer than wire forty. Trim the other end so wire forty is longer than wire #1. That way your ends are slightly offset.
Try splicing a 3600 pair telephone cable if you think the Gilligan's Island harness is a pain.