MouseR

Hey there, Yeah i have those exact symptoms after attempting to install an aftermarket headunit that was deemed to be compatible. Having put the OEM Mark Levinson unit back in i have no audio. I had the Amp and headunit tested by everyone other than Lexus. I have no audio functionality at all. screen displays " Audio Off". how did you get to the diagnostic screens as per the post above? i also have been replacing fuses with no joy thus far. I have a ML system in a 2009 ISF.

Hey there, anyone got anymore on this topic...... i have the same problem and have had the headunit and the amp tested by everyone other than lexus. i attempted to install an after market unit and it did not go well, now the ML original system reports "Audio Off", this has me bashing my head against a wall for quite a while. help eagerly sought.