This bulletin announces availability of new audio system amplifiers to address the following
operating concerns with the Harman Kardon Gen 3 infotainment system:
Symptom 1: No audio output is heard but, the volume level displayed changes when turning the
knob
Symptom 2: Audio volume increases to maximum intermittently without turning the knob
Symptom 3: A buzzing, screeching or crackling-type sound is heard coming through the speakers.
