Various connections 
In order to ensure correct car sound system mute, audio 
volume behaviour and voice must be handled differently.
Overview of connection options:
•  Mute box switches from car radio 
to car kit and back
•  Voice signal from the audio-out 
of the handsfree to mute box
•  Mute signal from power cable 
to mute box
Cables/Adapters needed:
•  Adapter from ISO to proprietary 
connector for car sound system 
and speaker may be required
Speaker
*
Phone-in
Mute box
*
 
(included in 
the ISO cable)
Mute box 
Connection options
Please note: car accessories must be installed or repaired by qualified professionals only. 
Carefully read the User Guide and Installation Guide for each system to be installed.
*
 Depends on sales package variant
14 15
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