A4 Mk2
| Avant |
| 1 - | Window aerials TV1/TV2 |
| 2 - | Rear window aerials for AM/FM |
| 3 - | Window aerials TV3/TV4 |
| 4 - | Navigation aerial -R50- roof aerial |
| 5 - | Multi-pin connector, 4-pin, black, loudspeaker connection |
| 6 - | Mid-range/treble loudspeaker, front left -R26-/mid-range/treble loudspeaker, front right -R27- in front doors (top) |
| 7 - | Bass loudspeaker, front left -R21- and bass loudspeaker, front right -R23- in front doors (bottom) |
| 8 - | Internal loudspeaker -R70- in dash panel (front centre) |
| 9 - | Mid-range/treble loudspeaker, rear left -R34-/mid-range/treble loudspeaker, rear right -R35- in rear doors (top) |
| 10 - | Bass loudspeaker, rear left -R15-/bass loudspeaker, rear right -R17- in rear doors (bottom) |
| 11 - | Bass loudspeaker -R100- located behind luggage compartment side trim (right-side) |
| 12 - | Amplifier -R12- behind luggage compartment side trim (right-side) |
| 13 - | Multi-pin connector, 12-pin, black, amplifier -R12- |
| 14 - | Multi-pin connector, 2-pin, black, voltage supply |
| 15 - | Multi-pin connector, 2-pin, black, CAN bus (infotainment) |
| 16 - | GPS connection (blue) from navigation aerial -R50- |
| 17 - | Connection TV3/TV4 (green) from right aerial module -R109- |
| 18 - | Connection TV1/TV2 (brown) from left aerial module -R108- |
| 19 - | Connection AM/FM (white) from left aerial module -R108- |
| 20 - | Left aerial module -R108- behind side trim in luggage compartment (left-side) |
| 21 - | Right aerial module -R109- located behind luggage compartment side trim (right-side) |