Overview - Radio, MMI Radio Most (I8D), Through My 2016

I8D - MMI Radio MOST

• Information Electronics Control Module 1 -J794- with integrated CD player/SD card reader in the glove compartment
• The Radio -R- is integrated in the Information Electronics Control Module 1 -J794-
• Multimedia System Control Head -E380- in the center console
• Front Information Display Control Head -J685- (5.8 inch display) in center of the instrument panel
• External Audio Source Connection -R199- (AUX IN jack) in the center console storage compartment, UE3
• Basic plus sound system, 8RM
• Video input for camera systems

Optional

• Digital Radio -R147- integrated in the Information Electronics Control Module 1 -J794-, QV3
• Radio System, Satellite -R146- integrated in the Information Electronics Control Module 1 -J794-, only North America and QV3
• Digital Sound System Control Module -J525- (Bang & Olufsen sound system) under the left front seat
• External Audio Source Connection -R199- (AMI) inside the center console storage compartment, UE7
• TV Tuner -R78- behind the right luggage compartment trim panel (3-door and 5-door vehicles, Sedan)/behind the right rear side trim panel (Cabriolet), QV1
• Audi Sound System 9VD
• Bang & Olufsen Sound System, 9VS
• Audi phone box, 9ZE
• Bluetooth interface, 9ZX
• Voice recognition system, QH1
• Multifunction Steering Wheel
• Navigation pre-installation, 7UH
• Basic navigation (SD card), 7UF

Courtesy of AUDI OF AMERICA, LLC

1. Roof Antenna -R216-
   • Not for the convertible
2. Front Information Display Control Head -J685- in Center of the Instrument Panel
3. Rear Window Antennas (3-door and 5-door, sedan)/Front and Rear Window Antennas Plus Antennas in the Side Trim Panels (Convertible)
4. Information Electronics Control Module 1 -J794- in the Glove Compartment
5. Multimedia System Control Head -E380- in the Center Console
6. Sound Systems
7. MOST Bus
8. Digital Sound System Control Module -J525- under the Left Front Seat
9. Microphone Unit in Front Roof Module -R164- (Telephone Microphone -R38-) in the Front Interior Lamp -W1-
10. External Audio Source Connection -R199- in the Center Console Storage Compartment

The data exchange to the Bang & Olufsen sound system (9VS) occurs through the MOST bus.

The connection to other vehicle systems is established through the CAN bus (Infotainment) and the Data Bus on Board Diagnostic Interface -J533-.

Fault Finding is performed using the "Guided Fault Finding"  . Refer to Vehicle Diagnostic Tester.

Notes on MOST bus

The optical data bus "MOST bus" is used in addition to the CAN bus.

A fiber-optic cable is used as a "connecting cable". Fiber optic cables are routed inside corrugated tubes for protection.

Replace the complete fiber-optic cable if possible.

The front surface of the connectors must not be contaminated.

If disconnecting the connectors: Attach the : VAS6223/9  .

Fig 1: Fiber-Optic Conductor Repair Set VAS 6223A

Courtesy of AUDI OF AMERICA, LLC

When routing fiber-optic cables, make sure not to go below the minimum bending radius of 25 mm. Do not crush or kink fiber optic cables.

Repairing fiber-optic cables. Refer to FIBER-OPTIC CABLES, REPAIRING .