Radio Systems - "Symphony II" and "Symphony II Bose(R)", Multi-Pin Connector Assignments

Radio Systems - "Symphony II" And "Symphony II BOSE(R)", Multi-pin Connector Assignments

Radio head unit, rear view







1. Multi-pin connector IV, 10-pin, red
2. Multi-pin connector I, 20-pin, black
3. Fuse
4. Multi-pin connector III, 8-pin, black
5. Multi-pin connector II, 8-pin, brown
6. Connection (IF) to Antenna Selection Control Module J515 / Left Antenna Module R108
7. Connection (HF) to Antenna Selection Control Module J515 / Left Antenna Module R108

Radio head unit, multi-pin connector assignments
Separate CD changer only where applicable.

NOTE: Terminals which are not listed are vacant/unassigned.







Multi-pin connector I, 20-pin - black
1. Line output - left rear, to Amplifier R12 (only with BOSE)
2. Line output - right rear, to Amplifier R12 (only with BOSE)
3. Line output - Ground, to Amplifier R12 (only with BOSE)
4. Line output - left front, to Amplifier R12 (only with BOSE)
5. Line output (front right) to Amplifier R12 (only with BOSE)
6. Switched positive to Amplifier R12
7. CAN-Bus High (Infotainment)
10. CD - Ground, to CD Changer R41
12. CAN-Bus Low (Infotainment)
13. CD data input from CD Changer R41
14. CD data output to CD Changer R41
15. CD-Clock from CD Changer R41
16. Battery positive (B+)- Battery positive (B+) - Terminal 30 to CD Changer R41
17. Switched positive to CD Changer R41
18. Line output - Ground, to CD Changer R41
19. Line output - left, from CD Changer R41
20. Line output - right, from CD Changer R41







Multi-pin connector II, 8-pin - brown
3. Right front loudspeaker (+) (not with BOSE)
4. Right front loudspeaker (-) (not with BOSE)
5. Left front loudspeaker (+) (not with BOSE)
6. Left front loudspeaker (-) (not with BOSE)







Multi-pin connector III, 8-pin - black
1. BOSE coding to Ground (only with BOSE)
2. Anti-theft alarm Ground from Comfort System Central Control Module J393
3. Data Link Connector (DLC)
7. Battery positive (B+) - Terminal 30
8. Ground (GND) - Terminal 31







Multi-pin connector IV, 10-pin - red
1. LF mute - Telephone (where applicable)
3. LF (+) from Telephone (where applicable) (not with navigation)
4. LF (-) from Telephone (where applicable) (not with navigation)
5. LF (+) from Navigation System with CD Drive Control Module J401
6. LF (-) from Navigation System with CD Drive Control Module J401
7. Navigation control wire from Navigation System with CD Drive Control Module J401 (only with navigation)