I have begun routing wires from the instrument panel or from to fuselage to the instrument panel. I am attempting to keep most along the fuselage sides until I get under the panel. I will then connect them to the panel connectors as supplied from Aerotronics. I elected to route the headphone jacks through the tunnel as well as the hand grip harnesses that will hook to the Tosten handgrip harness. I used Adele clamps to attach the harnesses to the sides of the tunnel and away from the elevator cables. I will pass the wires into the tunnel below the panel and through a grommet I placed in the cover to the tunnel. I split the cover at this point so that I can remove the wires if necessary. The grommet is split to so that it will slip around the headphone jacks.