[NoBones]

Alan, go to one of the home improvement stores in the electrical dept. they carry a cable lubricant. Or you could use plain old dish soap. Lube the wire up real good. I have found that an old shift cable works the best for a snake.
Check out your local marine repair shops as they throw them away daily. Just remove the cable from the jacket. Bend a hook at the end (Small hook) wrap with electrical tape.
Lube up the wire and squirt some in the chase. It should go through. Even if you soap up the old tranducer wire should
work for the snake as well.
Good luck, Ken