16 Introductionor■ if an audio main menu is currentlyactive, e.g. the FM1 or CD menu,press the multifunction knob.NoteThe Audio screen button in theSETUP menu is not selectable,when the volume is set to zero.To adjust the degree of volumeadaptation: set Speed vol. to a valuebetween 0 and 5.0: no enhancement of volume withincreasing vehicle speed.5: maximum enhancement of volumewith increasing vehicle speed.Adjusting the volume of AUX inputsources(see image of AUDIO SETUP menuabove)To adjust the relative volume level forexternal audio sources, e.g. a CDplayer: set AUX Level to Quiet,Medium or Loud.Adjusting the volume of voicecommands (navigation)To open the NAVIGATION SETUPmenu: press the SETUP button andthen select the Navigation screenbutton.If Voice Guidance is set to Off, set itto On.Set Voice Vol. to the desired volumelevel. After each change an audiblefeedback is given.System settingsVarious settings and adaptions for theInfotainment system can beperformed via the SYSTEM SETUPmenu.To open this menu: press theSETUP button and then select theSystem screen button.Adjusting the displayTo open the DISPLAY SETUP menu:select the Display menu item.