"Delta" Radio With Bose Sound System

Multi-pin connectors I, II, III (on back of radio) terminal assignments


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


20-pin connector I







1 - Line out, left-rear
2 - Line out, right-rear
3 - Low frequency Ground (GND)
4 - Line out, left-front
5 - Line out, right-front
6 - Switched positive supply (B+) for BOSE amplifier
7 - BOSE coding
8 - Clock signal
9 - Data signal
10 - Enable signal
12 - USA coding
13 - CD bus data (CD changer)
14 - CD bus clock (CD changer)
15 - Ground (GND) (CD changer)
16 - Positive supply (B+) (continuous)
17 - Switched positive supply (B+) for CD changer
18 - Low frequency Ground (GND) for CD changer
19 - Signal wire for left channel (CD low frequency-L)
20 - Signal wire for right channel (CD low frequency-R)

8-pin connector III (black)







1 - Vehicle speed sensor (Gala)
2 - Low frequency mute switch (telephone system)
3 - Terminal 30
4 - Terminal 86s connection for ignition key switched on and off (S-contact)
5 - Switched positive supply (B+) for antenna amplifier
6 - Illumination (terminal 58d)
7 - Terminal 30
8 - Ground (GND) (terminal 31)