O’ yes, a pull string.
I had one attached to the old transducer cable for a while, a parachute chord looped. But when I tried to pull the new cable through the knot in the chord came loose. Talk about a bummer.
All the wiring and hoses threaded through the center channel then banged a right or left under the floor making a snake impossible.
Luck was with me, my first hole came close enough to the end of the channel so’s to get a grab on the snake. What a relief.
No granny knots this time.
Thank you for your kind attention.