Home › Land Rover › 2020 › Defender 110 HSE › Repair and Diagnosis › General Information › Specifications Index › Diagnostic Trouble Code Index DTC: Audio Amplifier Module (AAM) -- Defender/L663 › Diagnostic Trouble Code Index - DTC: Audio Amplifier Module (AAM) (G2804413) › Description And Operation › Audio Amplifier Module (AAM) › DTC B1969-96: External Sound Synthesis Module - Component internal failure › Possible Causes