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Radio System Connectors and Connector Assignments, Chorus Through KW 21/04







Radio System Connectors and Connector Assignments, Chorus through KW 21/04





1 HF connection (black) from the left antenna module (R108)
2 10-pin connector IV, (T10h) red
3 8-pin connector III, (T8) black
4 8-pin connector II, (T8k) brown
5 Device fuse
6 20-pin connector I, (T20i) black

Unlisted connector terminals are not used.

2 - 10-Pin Connector IV, (T10h) Red





1 LF mute, not used
3 LF (+) from the telephone transceiver (R36) (not with Nav IV)
4 LF (-) from the telephone transceiver (not with Nav IV)
5 NF (+) from Navigation System with CD Drive Control Module (J401) (only with Nav IV)
6 NF (-) from Navigation System with CD Drive Control Module (only with Nav IV)
7 Navigation control wire from Navigation System with CD Drive Control Module (only with Nav IV)

3 - 8-Pin Connector III, (T8) Black





1 BOSE coding to ground PIN 8 (only with BOSE)
2 Anti-theft warning system (not used)
5 Positive switched to the antenna amplifier (R24) (not used).
7 Terminal 30
8 Terminal 31

4 - 8-Pin Connector II, (T8k) Brown





3 Right front speaker (+) (not with BOSE)
4 Right front speaker (-) (not with BOSE)
5 Left front speaker (+) (not with BOSE)
6 Left front speaker (-) (not with BOSE)

6 - 20-Pin Connector, (T20i) Black





1 Left rear signal to Amplifier/Woofer (in left rear luggage compartment) (R44)/Amplifier (R12).
2 Right rear signal to Amplifier/Woofer (in left rear luggage compartment) / Amplifier.
3 Signal ground to Amplifier/Woofer (in left rear luggage compartment) / Amplifier.
4 Left front signal to Amplifier (only with BOSE).
5 Right front signal to Amplifier (only with BOSE).
6 Positive switched to Amplifier/Woofer (in left rear luggage compartment) / Amplifier.
7 CAN-Bus High (Infotainment)
10 CD ground to CD Changer (R41)
12 CAN-Bus Low (Infotainment)
13 CD data in from CD Changer
14 CD data out to CD Changer
15 CD CLK in from CD Changer
16 Permanent positive to CD Changer
17 Positive switched to CD Changer
18 CD ground to CD Changer
19 Left signal from CD Changer
20 Right signal from CD Changer