| Components |

|
No |
Connector A |
Connector B |
|
1 |
Rear left speaker (+) |
- |
|
2 |
Front left speaker (+) |
- |
|
3 |
Front right speaker (+) |
- |
|
4 |
Rear right speaker (+) |
Steering wheel remote |
|
5 |
- |
- |
|
6 |
Door open |
USB DATA (+) |
|
7 |
IGN1 |
USB VOC |
|
8 |
Illumination (+) |
- |
|
9 |
Detent |
- |
|
10 |
Rear left speaker (-) |
Mic (+) |
|
11 |
Front left speaker (-) |
ACC |
|
12 |
Front right speaker (-) |
B+ |
|
13 |
Rear right speaker (-) |
- |
|
14 |
- |
- |
|
15 |
- |
- |
|
16 |
- |
Vehicle Speed |
|
17 |
Illumination (-) |
Steering wheel remote GND |
|
18 |
- |
USB DATA (-) |
|
19 |
|
USB GND |
|
20 |
- |
|
|
21 |
- |
|
|
22 |
Mic (-) |
|
|
23 |
- |
|
|
24 |
GND |

Specifications Item Specification Model RADIO (MONO Type) RADIO (TFT Type) Power supply DC 14.
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the center air vent duct (A).
Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor does not operate well, substitute with a known-good blower motor and check for proper operation.