A3 Mk1
| Connectors at operating electronics control unit, navigation -J402- |
| 1 - | Aerial connection (HF) from navigation interface -R94- |
| 2 - | Cooling fan |
| 3 - | Aerial connection (IF) to aerial selection control unit -J515- |
| 4 - | 11-pin connector from TV tuner -J415- |
| 5 - | Earth connection |
| 6 - | Connection block with three multi-pin connectors and one fuse |
| 7 - | Navigation aerial (GPS) connection |
| 8 - | Cooling fan |
| 9 - | 26-pin connector for navigation system sensors |
