Greetings - the last step of my holding tank replacement involves getting fluid level sensor wires from the starboard tank over to the port nav station. I'm aware of the concept of using the wire chase within the pan and have accessed that chase via the step light at the nav station. I've pushed a snake thru the area but can't discover where it comes out (it hits a hard spot by the galley sink and stops). Any suggestions/experiences are much appreciated.