A4 Mk2
| Overview of fitting locations (Saloon) |
| 1 - | CD changer -R41- |
| q | In glove box |
| 2 - | Internal loudspeaker -R70- |
| q | In dash panel (front centre) |
| 3 - | Telephone handset -R37- |
| q | On top right of dash panel |
| q | Removing and installing → Chapter |
| 4 - | Front interior light -W1- with emergency call button -E276- / breakdown help button -E275- / telephone microphone -R38- |
| q | In roof (front) |
| q | Removing and installing breakdown help button -E275- and emergency call button -E276- → Chapter |
| q | Removing and installing telephone microphone -R38- → Chapter |
| 5 - | Aerial for navigation system -R50- |
| q | Behind roof end trim (centre) |
| q | Removing and installing → Chapter |
| 6 - | Telephone aerial -R65- |
| q | Behind roof end trim (right-side) |
| q | Removing and installing → Chapter |
| 7 - | Amplifier -R12- |
| q | Behind luggage compartment side trim (right-side) |
| 8 - | Bass loudspeaker -R100- |
| q | In rear shelf |
| 9 - | Aerial selection control unit -J515- |
| q | Behind roof end trim (left-side) |
| 10 - | Additional aerial for telematics -R90- |
| q | Behind rear bumper cover |
| q | Removing and installing → Chapter |
| 11 - | Navigation interface -R94- |
| q | Behind luggage compartment side trim (left-side) |
| 12 - | Navigation/TV tuner -J415- |
| q | Behind luggage compartment side trim (left-side) |
| 13 - | Mid-range/treble loudspeaker, rear left -R34- / mid-range/treble loudspeaker, rear right -R35- |
| q | In rear doors (top) |
| 14 - | Bass loudspeaker, rear left -R15-/bass loudspeaker, rear right -R17- |
| q | In rear doors (bottom) |
| 15 - | Fax unit -R73- (connector for fax/laptop) |
| q | In centre console (bottom) |
| q | Removing and installing → Chapter |
| 16 - | Function selection switch 2 -E272- |
| q | In centre console (bottom) |
| q | Removing and installing → Chapter |
| 17 - | Telephone/telematics control unit -J526- |
| q | In electronics box beneath passenger's seat |
| q | Connectors → Chapter |
| q | Removing and installing → Chapter |
| 18 - | Mid-range/treble loudspeaker, front left -R26-/mid-range/treble loudspeaker, front right -R27- |
| q | In front doors (top) |
| 19 - | Bass loudspeaker, front left -R21-/bass loudspeaker, front right -R23- |
| q | At bottom of front doors |
| 20 - | Additional loudspeaker for telematics -R91- |
| q | In driver's storage compartment |
| q | Removing and installing → Chapter |
| 21 - | Display in instrument cluster |
| q | In dash panel |
| 22 - | Operating electronics control unit for navigation -J402- |
| q | In centre console (top) |
| q | Connectors → Chapter |
| q | Removing and installing → Chapter |