Still fighting a cold but did get something done on the plane today. I installed the other stainless firewall pass through I bought a long time ago from SafeAir1. I put this at the top of the firewall. I plan to run the CHT/EGT sensor wires through here and the GPS antenna cable; the GPS antenna will sit on a shelf under the cowl. The wires will get anchored on the baggage door cross support, so they should not interfere with anything. I needed to keep the pass through high so I had to trim a bit of the flange to match the radius of the firewall.