es Coax RG-400 Power to each FM Transceiver is supplied from avionics buss through 3A Circuit Breakers PIN M526574-3 placarded TM I' and TM T.. 3.) Mounted NAT Radio Interface P/N AA34-300 under copilot seat, with 202473x:04r aluminum bracket. alodined and primered Mounted Conant Antenna CI293-3 to aft belly of aircraft, with 2024T3x.0