A4 Mk3
| Bluetooth hands-free system (MMI from week 45/08 onwards) - layout |

| 1 - | Display unit for front information display and operating unit control unit -J685- in dash panel (centre) |
| 2 - | Multimedia system operating unit -E380- in centre console |
| 3 - | Microphone unit in front roof module -R164- (front right microphone -R141-) in front interior light -W1- |
| 4 - | Control unit 1 for information electronics -J794- with aerial for Bluetooth -R152- in dash panel |
| 5 - | Data bus diagnostic interface -J533- behind glove box (left-side) |
| 6 - | Digital sound package control unit -J525- behind luggage compartment side trim (left-side) |
