Audi TT MK1 (8N) infotainment

Chorus/Concert radios, CD/cassette player, CD changer, iPod adapter and Bose sound.

Coupe audio system
Number Component / Function
1 4-channel equaliser amplifier (Bose)
2 Rear speaker (Bose)
3 J412 - Telephone electronics control unit (on the rear floor frame)
4 Phone Antenna
5 Radio aerial in the rear window
6 Antenna amplifier in the tailgate
7 Rear speaker (Bose)
8 CD changer
9 Telephone or preparation
10 Speaker: tweeter
11 Speaker: bass
12 R - Car radio
13 Central speaker (left defrost nozzle)
14 Navigation system receiver
15 Speaker: bass
16 Speaker: tweeter

Audi Chorus and Concert radios

There was no car radio in the series. The Chorus and Concert radios were available as options, both equipped with a first-generation cassette player. The Concert, however, offered improved sound and amplification.

Chorus - Generation 1

Chorus - Generation I

Radio/Cassette
No external device connection
Production: 1998 – 2001
Cannot add a CD changer or iPod adapter later.

Chorus - Generation 1

Concert - Generation I

Radio/Cassette
External device connection
Production: 1998 – 2001
Cannot add a CD changer or iPod adapter later.

Chorus - Generation 1

Chorus - Generation II

Radio/Cassette
External device connection
Production 2002 – 2006
Compatible with the later addition of a CD changer and an iPod adapter.

Chorus - Generation 1

Concert - Generation II

Radio/Single CD Player
External device connection
Production : 2002 – 2006
Compatible with the later addition of a CD changer and an iPod adapter.

External devices

CD changer

CD changer

Installed in the rear left storage panel
Production: 1998 – 2006

iPod Adapter

iPod adapter

Can be installed on vehicles equipped with a Generation 2 car radio.
Cannot be used with an automatic changer (or other external device).

Bose Sound System

The Bose Sound System delivers an exceptional sound experience. It consists of a dedicated amplifier and several speakers optimized for the passenger compartment, offering a powerful and balanced sound, specially designed for the coupe and the roadster.

Bose Sound System - Coupe

Bose Sound System on Coupe

Bose Sound System - Roadster

Bose Sound System on Roadster

Navigation system

The Basic Navigation System (BNS) is a simple and functional integrated navigation system produced between 1998 and 2003. It uses a monochrome display in the onboard computer (FIS), supplemented by voice instructions.
Routes are calculated from mapping CDs, and commands pass through the Chorus/Concert radio block. Minimalist but effective, it offers a discreet and integrated navigation aid, long before the era of touch-sensitive GPS.

BNS - Monochrome display

BNS - Monochrome display

BNS - Control Module

BNS - Control Module

BNS - Mapping CD

BNS - Mapping CD

Telephone pre-equipment

H8 - Sound alarm for burglar alarm device

Generation I

The first generation pedestals are connected to the system by a cable.
The base keeps the phone charged. The bases are specific to each model of phone.

M27 and M28 - Door lighting

Generation II

The second-generation pedestals are cable-free, but have a gold-plated band on the base.
The bases are specific to each model of phone.

Wiring diagram

Car Radio Connectors - Gen I and II

Audi Chorus 2 and Concert 2 connectors

Chorus and Concert Connectors

Connector Function
T10K Phone and Navigation
T6H Amplifier
T6K Bus CAN
T8C CD changer
T8A Speakers
T8 Power supply

Chorus and Concert radio wiring - Gen II

Cable cabling and colors may vary slightly depending on the model and years. It is therefore recommended to check the specific drawings for your vehicle for accurate identification.

The chart below is the wiring of a 2002 Model Year Concert 2 with the Bose Sound System, CD Changer, Phone and Navigation System options.

Number Function Colour

T8 connector - Power supply

1 Bose coding (earth) Brown
2 Anti-theft alarm earth Brown/Grey
3 Diagnostic line Grey/White
4 -
5 -
6 -
7 Permanent +12V Red/White
8 Earth Brown

T8A Connector - Speakers

1 - -
2 - -
3 - -
4 - -
5 - -
6 - -
7 - -
8 - -

T6H connector - Amplifier

1 - -
2 - -
3 Audio signal earth Brown
4 Left Front Signal Green
5 Front right signal Grey/White
6 Ignition-switched +12V Black

T6K connector - CAN bus

7 CAN High Orange/Violet
8 - -
9 - -
10 CD changer earth Brown
11 - -
12 CAN Low Orange/Brown

T8C connector - CD changer

13 Data In Orange
14 Data Out (to CD changer) Red
15 Data synchronisation Black
16 Permanent +12V Blue
17 Ignition-switched +12V Yellow
18 Earth (NCA- black)
19 Left audio line White
20 Right audio line Red

Connector T10K - Phone and Navigation

1 Mute Phone Grey
2 - -
3 Audio Telephone (+) Yellow
4 Telephone audio (–) Green
5 Audio navigation (+) Blue/Red
6 Audio navigation (-) Brown/Red
7 Navigation Command Line Red/Green
8 - -
9 - -
10 - -