Sony XAV-AX4000 Help Manual page 95

Help Guide
In-Car Receiver
XAV-AX4000
There is no ringtone.
Raise the volume while receiving a call.
To adjust the ringtone volume, press HOME, touch [Settings], and select [Ring Tone] of [Volume Settings] in
[System].
The speakers are not connected to the unit.
Connect the speakers to the unit. To select the speakers for ringtone, press HOME, then touch [Settings] and
select [Optional Audio Output Channel] in [System].
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