---

I agree run a snake to the back of the boat and pull the cables thru. if the wire are bundled at the entrance or even inside you should be able to pull more wires thru. I cant imagine the tube being complete full.

DO you have an original depth find that has a wire already in the tunnel? Pull a 5-50 cord or rope or something while pulling the old fish finder wire out. Attach new fish finder cable back and pull thru. What are you pulling thru for the kicker? Is it remote control? Fuel lines should all be attached in the rear of the boat.

If the mechanic put a large tube in the tunnel, I cant see it completely feeling the tunnel. If the tunnel is larger you may be able to pull your new wires thru the tube. That tube may be just at the entrance.

Sometimes it is very challenging but is always doable to run new wires thru the tunnel. It is not as hard as it seems. There is more space in there than you think. And the wires will not get claustrophobic. Problem is getting hung up on something. Having two people helps one on each end and if it gets hung up pull back and forth until it goes.

Plan B would be do what others have said and pull the tube out and pull all the wires back thru

Plan C does your boat have an internal tank. I thought all older Montauks have external tanks. If so then you could pull all new wires from the stern to the console thru the tank area and let them lay on the tank.

Split the fuel line from the outboard for the kicker.

Dont forget to lube up your cable for the run and also pull a new string thru for a later pull. 5-50 cord works great for this.
Archie