Radio/Navigation Display Control Module J503 , connections

WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2008 Audi S4, 2008 Audi RS 4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Radio/Navigation Display Control Module J503 , Connections

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - HF connection (white) to Antenna Selection Control Module J515 / Left Antenna Module R108

2 - IF connection (white) to Antenna Selection Control Module J515 / Left Antenna Module R108

3 - GPS connection (blue) from Antenna R11

4 - Connection block with four multi-pin connectors and a fuse for unit

NOTE:

Unlisted connector terminals are not assigned.

Fig 2: Multi-Pin Connector

Courtesy of VOLKSWAGEN UNITED STATES, INC.

A - Brown 8-pin multi-pin connector (T8q)

2 - Right front speaker (+) (not with BOSE)

3 - Left front speaker (+) (not with BOSE)

6 - Right front speaker (-) (not with BOSE)

7 - Left front speaker (-) (not with BOSE)

Fig 3: Multi-Pin Connector

Courtesy of VOLKSWAGEN UNITED STATES, INC.

B - Blue 12-pin multi-pin connector (T12n)

1 - Left signal from Digital Radio (DAB) R147

2 - CD ground to CD Changer R41

3 - Signal ground from Digital Radio (DAB) R147

4 - Permanent positive to CD Changer R41

5 - BOSE coding to ground (only with BOSE)

6 - CD data out to CD Changer R41

7 - Right signal from Digital Radio (DAB) R147

8 - Left signal from CD Changer R41

9 - Right signal from CD Changer R41

10 - Positive switched to CD Changer R41

11 - CD data in from CD Changer R41

12 - CD CLK from CD Changer R41

Fig 4: Multi-Pin Connector

Courtesy of VOLKSWAGEN UNITED STATES, INC.

C - Green 12-pin multi-pin connector (T12m)

1 - Speed signal (not used)

2 - Signal from Back-Up Light Switch F4 (not used)

3 - Left front signal to Amplifier R12 (only with BOSE)

5 - Left rear signal to Amplifier R12

6 - NF (-) from Telephone Transceiver R36 /preliminary setup for cell phone package

7 - L-diagnostic

8 - Signal ground to Radio R12

9 - Right front signal to Amplifier R12 (only with BOSE)

11 - Right rear signal to Amplifier R12

12 - NF (+) from Telephone Transceiver R36 /preliminary setup for cell phone package

Fig 5: Multi-Pin Connector

Courtesy of VOLKSWAGEN UNITED STATES, INC.

D - Black 8-pin multi-pin connector (T16j)

9 - CAN-Bus High (Infotainment)

10 - CAN-Bus Low (Infotainment)

11 - NF mute from preliminary setup for cell phone preparation

12 - Terminal 31

13 - Positive switched to Amplifier R12

14 - Anti-theft warning system ground from Comfort System Central Control Module J393

15 - Terminal 30

16 - Permanent positive to PIN 15 (anti-theft protection)