Setting the audio volume for external audio source
If an external audio source (e.g. an MP3 player or iPod®) is connected to the AUX input then the audio source that is connected can have a different volume than the audio system's internal volume (e.g. radio). Correct this by adjusting the volume of the input: In the normal view for the AUX source, press OK/MENU, select and then volume setting Standard or Boost.