Rivet nutplates to barrier strip bracket. Rivet bracket to forward baggage aft bulkhead. Screwed two barrier strips to bracket. Installed microphone PTT barrier strip to fwd L inboard rib. Wired both sides and ran cable to intercom plug panel. Pilot PTT - Blue Pilot ground - Green Co Pilot PTT - Orange Co Pilot ground - White Installed rear seat heat relay and wired Molex connector. Installed all connectors on headset panel. Ran all headset wiring to intercom panel location and power line to fwd fuseblock.