A5 Quattro Coupe V6-3.2L (CALA) (2009)
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Attach the Protective Cap for Cable Connector (VAS 6223/9) - 1 - onto the MOST-Bus connector - 2 -.
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Disconnect electrical connections - 1 - and - 3 - and remove the - Digital Sound System Control Module - 4 (J525).
Installing
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Install in reverse order.
Tightening specifications, refer to => [ Sound Systems Assembly Overview, Through October 31, 2008 ] See: Description and Operation.