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Discussion Starter · #1 ·
Just got the BT kit from Kufatec for my A3 with Symphony/MFSW. Their wiring instructions say the grey wire for mute is only when installed with RNS-E system. Is this correct? So, there is no radio mute on the Symphony for incoming/outgoing calls?
 

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The Symphony II has a Mute pin, so does the RNS-E. It has been mentioned (although not confirmed) that the RNS-E may mute over CAN. But you get definitely your Symphony muted when the mute wire is connected to the Mute pin.
 
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