57506 R2 STX165 EchoUAT to ACM Harness April 02, 2024 18:56 Updated ACM to Sandia STX-165R, uAvionix echoUAT, and Dynon SV-GPS-250/2020 drawing. 57506 R2 STX165 EchoUAT to ACM Harness.pdf 400 KB Download Related articles 57504 R1 ACM to 330ES 57500 R6 XPNDR & GPS & ADSB AF-6600 and AF-5600 Drawings