I'm trying to install my new fishfinder last nigh, and I ran into a snag. I tied a small rope to the end of my old transducer wire, that way when I pulled the old wire out, I could use the rope to pull the new wire back through.

The wire is coming from the back of the boat, through a hole in the deck where all the other cable/wires/hoses go, and it come out of another hole under the dash. It is getting stuck when I try to pull it through, about half-way in.

My problem is there is no way to access it. The boat is all alluminum, and pop-riveted. The sides of the battery compartment and coolers all have walls preventing you from accessing the side of the boat where the wires/hoses/cables run.

Are there there any tricks I can try to get this wire through?