I can assure you, it sucks.

Had to fish a network cable from the helm down to the stereo equipment under the sink. What a nightmare. I was ultimately able to fish it under the cabin step with some of the factory wiring. Had to pull both cockpit speakers, and do a little trial and error with the fish tape to get it through all the right places. Then had to pull the fridge to get it the rest of the way home. Oh well, it should be cool having full integration with my chart plotter

Congrats on a job well done. Sounds like there needs to be an easier way. lol

I've done it........twice. and your right, it sucks!

I originally tried to go over the top, under the dash, but there is dead space between the cabin and cockpit liner.

I started a similar thread looking for help on this issue for my 353 because I was running a transducer cable and got zero replies. I took the long way, back to the engine compartment and back up the other side.