Thanks for that picture Allan! I'm hoping not to have to take the sole apart, but that might be an option. I'm thinking, though, that I can just go from immiedately under the mast step to port, and not even have to put any wires down the compression post. I think I can access these wires through the lights and fixtures and right back to the panel. Do you see any problem with going that route?
Steve
Didn't mean to imply that you needed to pull up the sole. That's just a picture of another poster's boat to show where alternatives are to fish stuff across the boat either inside a beam or outside.
From your picture, you have more wires exiting from the deck and going to the port side than I do. That is the most direct way to the electrical panel. I think a terminal strip in the vanity slider would be a good idea as it lets you break the job into a couple of easier tasks. You can do your relatively short run from the panel to the vanity first. Then while the mast is being set, push the wire bundle to port and hook up to the terminals. Its going to be a bit difficult anyway as the compression post will have to be in place to take the mast load and you'll be pulling a lot of wire that has to go to port. How do you get wires out the side of the compression post? It looks like you have modified that transverse piece of wood already so you have a block (I hope not wood) on top of your post that pushes right up under the deck? The deck or beam inside does not support the weight of the mast. The mast is supported by a solid couple directly under the deck including something in the beam and then the post. The mast is slightly forward of the compression post so the wires come through something and have to exit to the side in the case of the original VHF and now your extra wires.
Here is a picture of how mine was when the wood above failed and the deck pushed down. You can see that crossways piece of wood had a big notch taken out of it and the post only supported the back part of it via the skin of the beam. Then the wires could go in the groove to port. But with the inadequate support it all crushed down. My solution was to put a block of aluminum with a hole drilled in the side to turn the wire to port as well as one drilled down at an angle for the wires into the settee. I got rid of the entire chunk of wood, but now realize that's not necessary. It just needs a strong support block right on top of the post that won't settle over time.
Too much information, right? I still like the idea of a terminal to easily separate the wires. You can also have a pull string if you need to drag more, or the same wires in the event that mast has to come off again and you won't have to pull the compression post.