I am putting a couple small speakers in the seat backs. I am trying to decide where to route the wires.
One option is to run the wires up high in the seat backs and through the cabin up high. The drawback would require a bit of cove trim to hide the wires that would be visible and covers up some fillet work I was kinda proud of. The advantage is that is is nice to keep the wires up high.
The second option is to run the wire down the inside of bulkhead 7 through the cockpit deck inside the seat back then route the wire under the floorboards. I have some nice waterproof "through-wall" connectors. The advantage is that is will look much nicer. The disadvantage is putting a hole in the deck and a little less direct route to my control panel.
I am leaning toward the second option unless someone talks me out of it.