I have what appears to be a broken cable on my 18 ft Sea Pro with a Merc 115. The cable goes into the floor in the console and comes out of the rear corner. I don't know whether it runs in a tube and I am not sure that I can access it while in the hull. How do I run the new cable if I can't get at it? I am thinking that I would attach a length of wire cable to the old cable and pull it through when I take the old one out. This would allow me to measure the old cable to make sure that I have the right length, and then use the wire cable to pull the new cable into place. Anyone with some experience on this?.