Audio Unit for BOSE System
TERMINAL AND REFERENCE VALUE CHART
| Terminal (Wire color) |
Item |
Signal input/output |
Condition |
Reference value |
| + |
- |
Ignition switch |
Operation |
| 2 (R/L) |
3 (W) |
Audio signal LH |
Output |
ON |
Receive audio signal. |
|
| 6 (BR) |
15 (G) |
Steering switch signal A |
Input |
ON |
Keep pushing SOURCE switch. |
approx. 0 V |
| Keep pushing MENU UP switch. |
Approx. 1.2 V |
| Keep pushing MENU DOWN switch. |
Approx. 2.5 V |
| Keep pushing ENTER switch. |
Approx. 3.7 V |
| Except for above. |
Approx. 5 V |
| 7 (V) |
Ground |
ACC power supply |
Input |
ACC |
- |
Battery voltage |
| 8 (B/W) |
Ground |
Illumination control signal |
Input |
OFF |
Illumination control switch is operated by lighting switch in ON position. |
Change between approx. 0 V and approx. 12 V |
| 9 (R) |
Ground |
Illumination signal |
Input |
OFF |
Lighting switch is OFF. |
Approx. 0 V |
| Lighting switch is ON. |
Approx. 12 V |
| 11 (P) |
12 (L) |
Audio signal RH |
Output |
ON |
Receive audio signal. |
|
| 15 (G) |
Ground |
Steering switch signal ground |
- |
ON |
- |
Approx. 0 V |
| 16 (O) |
15 (G) |
Steering switch signal B |
Input |
ON |
Keep pushing VOL DOWN switch. |
Approx. 0 V |
| Keep pushing VOL UP switch. |
Approx. 1.2 V |
| Keep pushing TEL, PTT switch. |
Approx. 2.5 V |
| Keep pushing BACK switch. |
Approx. 3.7 V |
| Except for above. |
Approx. 5V |
| 19 (Y) |
Ground |
Battery power supply |
Input |
OFF |
- |
Battery voltage |
| 20 (B) |
Ground |
Ground |
- |
ON |
- |
Approx. 0 V |
| 21 (B/R) |
25 (BR) |
Sound signal LH |
Input |
ON |
When playing DVD (Down mix is ON) |
|
| 22 (B/W) |
26 (L) |
Sound signal RH |
| 23 (Y) |
- |
Communication signal (H) |
Input/Output |
- |
- |
- |
| 24 (O) |
- |
Communication signal (L) |
Input/Output |
- |
- |
- |
| 27 |
- |
Shield |
- |
- |
- |
- |
| 30 (BR) |
31 (B/R) |
TEL voice signal |
Input |
ON |
When inputting TEL voice signal. |
|
| 37 |
- |
Shield |
- |
- |
- |
- |
| 41 (R) |
45 (G) |
Audio signal LH |
Input |
ON |
Satellite radio mode is ON. |
|
| 42 (B) |
46 (W) |
Audio signal RH |
Input |
ON |
Satellite radio mode is ON. |
|
| 43 (W) |
Ground |
Communication signal (AUDIO-SAT) |
Output |
ON |
Satellite radio mode is ON. |
|
| 47 |
- |
Shield |
- |
- |
- |
- |
| 48 |
- |
Shield |
- |
- |
- |
- |
| 50 (B) |
Ground |
REQ1 (SAT-AUDIO) |
Input |
ON |
Satellite radio mode is ON. |
|
| 51 (R) |
Ground |
Communication signal (SAT-AUDIO) |
Input |
ON |
Satellite radio mode is ON. |
|
| 53 |
Ground |
Antenna amp ON signal |
Output |
ON |
- |
Approx. 12V |
| 54 |
- |
AM-FM main |
Input |
- |
- |
- |
| 55 |
- |
FM sub |
Input |
- |
- |
- |