– FS2004 Sound Gauge flight2000it 19 years ago FS2004 Sound Gauge. This gauge will play most of the sound files (not included) from Dave March’s S-Combo. Should fit any panel. By Chris Hutchings. 1,7 Mb FSX/FS2004/P3D – Generic GCA Gauge V2.1FSX/FS2004 – Davtron M377C Outside Air Temperature (OAT) GaugeFSX/FS2004 – ALCOR EGT Gauges