Cumulus Soaring, Inc.- XCOM Wiring errors are the main reason for radio failures. Purchasing a pre-soldered wiring harness will make sure your radio is working and you are flying as soon as possible. Warranty The XCOM 760 VHF Transceiver comes with a 3 year warranty. The 3 year warranty applies to units shipped after May, 2008. XCOM 760 INSTALLATION AND USER MANUAL Pdf Download. It is our recommendation that installers purchase the factory manufactured wiring harness or that owners have a local avionics repair or maintenance facility install the XCOM 760 for you. When positioning the radio, ensure that the controls are within easy reach of the pilot and in a suitable viewing angle when the pilot is sitting and secured Avionics Pinout PDF Files - Texas Air Salvage Texas Air Salvage - Avionics Pinnout Files. wwwsAirSalvage Avionics pinout files . Looking for a part for your aircraft?