Ran the intercom wires through the spar box. Drilled hole at the outboard edge near where the brake cables go in the trigear. Deburred and added grommets. Ran the com antenna, mic 4-wire shielded, pilot phone, copilot phone, copilot mic ground, pilot & copilot PTT's, and the ELT 4-wire. Also drilled a hole in the cross member that is the aft lower seat support and ran the wires through there. Ran the wires to the tail cone through a gap between the aft spar and the forward tail cone vertical, but this puts the wires across the bare edge of a c-channel, so I'll add another hole and grommet there.