Operating instructions

CONTENTS
31
FAQ
Questions about transferring data.
What must I do to be able to use Bluetooth
®
audio connectivity (AUX BT)?
Audio streaming via Bluetooth
®
has to be
enabled first by means of a setting (AUX
Bluetooth) under ‘DISC/OPTION/SET DISC/
AUX’. Mobile phones that support the relevant
profiles (A2DP/AVRCP) will now be connected
to these profiles automatically at every start.
You can tell whether there is an existing
connection by the additional presence of the
AUX BT source under ‘DISC’.
Which functions are supported with Bluetooth
®
audio connectivity (AUX BT)?
Functions supported are determined by the
scope of functions implemented in the mobile
device. Where a device does not have AVRCP,
playback functions have to be controlled from the
device itself. Minimum scope of functions with
AVRCP (Version 1.0) comprises ‘Start Player’,
‘Pause’, ‘Next Track’ and ‘Previous Track’. Some
devices additionally support rewind and fast
forward (controlled by arrow buttons on PCM).
Newer devices incorporating Version 1.3 already
support transfer of track names and, in some
cases, further metadata such as artist and
album of the track currently being played, but
also the launching of the audio player when the
corresponding AUX BT source is selected on PCM.
Why are there different menus for AUX BT?
The different menus are aligned to the afore-
mentioned scopes of functions supported by the
various AVRCP versions. Devices with AVRCP1.0
support are controlled exclusively by the arrow
buttons. If the device reports AVRCP1.3 support,
PCM displays an advanced menu in which the
metadata transferred (name, artist and album of
the track currently playing) are shown, provided
this is also supported by the device (Bluetooth
®
player or mobile phone).
Why are no metadata (track, artist, album)
displayed in the advanced version of the
AUX BT menu?
Some devices transfer no metadata even though
they report AVRCP1.3 support. In these cases, the
corresponding fields in PCM remain blank.
Why is the AUX BT source not activated
after a system start?
To start with, the AUX BT source always needs
a Bluetooth
®
connection with a corresponding
mobile phone or Bluetooth
®
player. This
con nection is not available in the period
im mediately following PCM start-up because
connection priority is given to the phone profiles
(SIM Access Profile (SAP) or Handsfree) first
and then to the audio profiles (A2DP, AVRCP).
If your Bluetooth
®
player does not have a
telephone function, this will always have to be
connected manually after a system start.
There is a detailed functional overview of mobile phone models that have been compatibility-tested by Porsche, starting on page 43. An explanation of the terms used here can be found in the glossary starting on page 38.