A4 Mk2
| Avant |
| 1 - | Telephone handset -R37- on top of dash panel |
| 2 - | Additional loudspeaker for telematics -R91- in driver's storage compartment |
| 3 - | Telephone microphone -R38- in front interior light -W1- |
| 4 - | Radio -R- in centre console (top) |
| 5 - | Sound systems |
| 6 - | Display in instrument cluster |
| 7 - | Function selection switch 2 -E272- in centre console (bottom) |
| 8 - | Steering column electronics control unit -J527- on steering column |
| 9 - | Multi-function steering wheel |
| 10 - | Telephone/telematics control unit -J526- in electronics box beneath front seat (right-side) |
| 11 - | Operating electronics control unit for navigation -J402- in the centre console (top) |
| 12 - | Aerial filter (GPS) -R110- behind luggage compartment side trim (left-side) |
| 13 - | Navigation aerial -R50- roof aerial |
| 14 - | Telephone aerial -R65- (roof aerial) |
| 15 - | Additional aerial for telematics -R90- behind rear bumper cover |
| 16 - | Fax unit -R73- (connector for fax/laptop) in centre console (bottom) |
| 17 - | Emergency call button -E276- in interior light (front) -W1- |
| 18 - | Breakdown help button -E275- in interior light (front) -W1- |