Roger, give this a try to start the engine sounds, press F9 once:winki: . if the engine is in mute mode, press F8 once(or twice
ops: ) to take it out of mute mode. by pressing F8 twice fast, it will lower the sound until it is muted, then each time you press F8 twice the sound volume will go back up:winki: . be sure you start the engine moving after you try each of those:winki: .
My AC6000 is a full blown BLI with QSI, so its different then what you have, HOWEVER, i have a BLI Blueline SD7, and i would assume the sound system in that works the same as YOUR Blueline AC6000:winki: .
i hope one or the other works for you:thumb:
:deano: -Deano