FS2004/FSX – Collins Radio Appliances Of CT flight2000it 13 years ago FS2004/FSX – Collins Radio Appliances Of CT. 2x COM, NAV, ADF, Xpndr and a set of switches for audio selecting. In replacement of default radio of the King Air but with standby frequency. By Pierre Fasseaux. 250 Kb FSX/FS2004 – Collins CTL22 COM1/2 And CTL32 NAV1/2FSX/FS2004 – Garmin GTR225 COM1 And COM2 Radios Revision 2FSX/FS2004 – Garmin GTR225 COM1 and COM2 radios revision 1