Sony XAV-AX8000 Help Manual page 5

The other party says that the volume is too low or high.
Echo or noise occurs during call conversations.
The phone sound quality is poor.
The volume of the connected BLUETOOTH device is low or high.
The sound skips during audio streaming or the BLUETOOTH connection fails.
The connected BLUETOOTH device cannot be controlled during audio streaming.
Some functions do not work.
A call is answered unintentionally.
Pairing failed due to time out.
Cannot pair.
The BLUETOOTH function cannot be operated.
No sound is output from the car speakers during a handsfree call.
SiriusXM Connect Vehicle Tuner (XAV-AX8000(UC))
A mature channel is not blocked although parental control setting has been made.
Apple CarPlay
The Apple CarPlay icon does not appear on the HOME screen.
Android Auto
The Android Auto icon does not appear on the HOME screen.
WebLink™
WebLink™ cannot be used.
There is no sound./The sound is low.
Messages
General
BLUETOOTH
SiriusXM Connect Vehicle Tuner (XAV-AX8000(UC))
WebLink™
DAB radio (XAV-AX8050D(EUR))
Customer Support Websites
About the "Support by Sony" App
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