Overview - Navigation System, MMI Navigation, 7T2

7T2 - MMI Navigation 

• Information Electronics Control Module 1 -J794- with CD player/SD card reader/navigation system integrated in the instrument panel
• Navigation data saved on the SD card
• Radio -R- integrated in the Information Electronics Control Module 1 -J794-, 8DP
• Front Information Display Control Head -J685-, display in center of the instrument panel
• Multimedia System Control Head -E380- in the center console, QW1
• CD Changer -R41- in glove compartment, 7A2
• External Audio Source Connection -R199- in the center console, UF7
• Digital Sound System Control Module -J525- in the luggage compartment on the left rear side
• Sound systems: Standard/BOSE, 9VD/8RY
• Bluetooth Hands-Free Calling, 9ZX
• Voice recognition system, QH1

Optional 

• Cell phone preparation, 9ZF
• Digital Radio -R147- integrated in the Information Electronics Control Module 1 -J794-, only Europe/Rest of World and QV3
• Radio System, Satellite -R146- integrated in the Information Electronics Control Module 1 -J794-, only USA and QV8

Courtesy of AUDI OF AMERICA, LLC

1. Roof Antenna -R216-
2. Front Information Display Control Head -J685-, Display in Center of the Instrument Panel
3. Multimedia System Control Head -E380- in the Center Console
4. Information Electronics Control Module 1 -J794- Inside the Instrument Panel
5. External Audio Source Connection -R199- in the Center Console
6. Data Bus On Board Diagnostic Interface -J533- Under the Rear Bench Seat
7. Digital Sound System Control Module -J525- in Luggage Compartment on Left Rear Side
8. MOST Bus
9. CD Changer -R41- in Glove Compartment
10. Left Front Microphone -R140-, Microphone Unit in Front Roof Module -R164- in the Front Interior Lamp -W1-

Fault Finding is performed using the "Guided Fault Finding"  on the Vehicle Diagnostic Tester --.

Antenna wires, repairing. Refer to ANTENNA WIRES, REPAIRING .

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  .

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 the fiber-optic cables.

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