WARNING | Disconnect the battery earth cable before working on the electrical system. |
| On vehicles fitted with telematics system, activate the service mode for the telephone/telematics control unit -J526- before disconnecting battery -A- → Chapter. |
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| When re-connecting battery -A-, always adhere to correct sequence for connecting and disconnecting battery -A- → Electrical System; Rep. Gr.27. Deactivate the service mode for telephone/telematics control unit -J526- → Chapter. |
| Always use radio devices -R- and fitting components from the Audi range so as to ensure trouble-free installation and optimum reception. |
| All radio systems -R- are encoded so they recognise the instrument cluster (anti-theft coding). When removing and installing the same radio -R- or instrument cluster and after disconnecting the power supply, it is not necessary to encode the system. |
| Radio generation II+ is fitted from KW 22/06 onwards. |
| These radio units employ two tuners with “phase diversity”. |
| The further design corresponds to that of “symphony”. |
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