Show me how to run tower speaker wiring, pics please if you have them!

[Kiteboarder]

I'm installing a Aerial Ascent tower on my 88 SN2001, what is the best way to run speaker/lighting wires from the tower into the boat? I was thinking about running all the wires through the tower front leg on one side, drilling a hole at the bottom of the leg. Then drilling another hole in the deck and pull the wire into the boat. How do you make this part look clean, gromets? fitting? sleeving??
Thanks.