Audi Workshop Service and Repair Manuals > A3 Mk1 > Vehicle electrics | Radio, Telephone and Navigation System, Self-diagnosis | Self diagnosis, V.A.G Inspection Service | Radio system self-diagnosis (as of MY 98) | Reading measured value block

List of display groups as of MY 02

Display group number	Indicated on display
001	1 = Voltage terminal 30 2 = Active amplifier control output 3 = Telephone 4 = Telephone mute input status
002	1 = Front loudspeaker 2 = Front loudspeaker status
003	1 = Type of aerial 2 = Aerial 3 = Aerial status
004	1 = CD link 2 = CD link status
005	1 = IF output 2 = IF output status

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