Article ID : 00032164 / Last Modified : 12/16/2016

How to mute the head unit beep function.

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Sony® head units produce a beep sound when buttons are pressed. To mute the beep sounds, simultaneously press the SEL or SOUND button and the 6 button on the head unit at the same time. Pressing these buttons a second time will restore the beep function.


  • The beep function can not be activated when connected to an external amplifier.
  • This procedure encompasses most Sony head units. However, consult the instruction manual for specific information if necessary.