| Components |

| NO. | Connector A | NO. | Connector B | NO. | Connector C |
| 1 | - | 1 | GND | 1 | transmission (Tx) |
| 2 | Front center (-) | 2 | Front Left midrange/tweeter(+) | 2 | reception (Rx) |
| 3 | Front center (+) | 3 | Front Left midrange/tweeter(-) | 3 | ? |
| 4 | Subwoofer (-) | 4 | Left Surround (+) | 4 | |
| 5 | Subwoofer (+) | 5 | Left Surround (-) | 5 | |
| 6 | - | 6 | - | 6 | |
| 7 | - | 7 | - | 7 | |
| 8 | Front bass(LH)(+) | 8 | - | 8 | |
| 9 | Front bass(LH)(-) | 9 | - | 9 | |
| 10 | Front bass(RH)(-) | 10 | - | 10 | |
| 11 | Front bass(RH)(+) | 11 | - | 11 | |
| 12 | - | 12 | B (+) | 12 | |
| 13 | left midrange/tweeter(-) | 13 | bass (LH) (-) | 13 | |
| 14 | left midrange/tweeter(+) | 14 | bass (LH) (+) | 14 | |
| 15 | ight midrange/tweeter(-) | 15 | Reserved (-) | 15 | |
| 16 | Right midrange/tweeter(+) | 16 | Reserved (+) | 16 | |
| 17 | bass (RH) (-) | 17 | - | 17 | |
| 18 | bass (RH) (+) | 18 | CAN (-) | 18 | |
| 19 | Front midrange/tweeter(+) | 19 | CAN (+) | 19 | |
| 20 | Front midrange/tweeter(-) | 20 | - | 20 | |
| 21 | Surround(RH) (-) | 21 | IGN1 | 21 | |
| 22 | Surround(RH) (+) | 22 | ACC | 22 |
Removal Take care not to scratch the crash pad and related parts. 1. Disconnect the negative (-) battery terminal. 2. Remove the crash pad side garnish assembly.
Removal 1. Disconnect the negative (-) battery terminal. 2. Open the trunk, remove the left trunk trim. (Refer to Body - "Trunk Trim") 3. Remove the external amplifier (C) after disconnecting the connector (A),(B) and loosening the mounting nuts.
Diagnosis With GDS 1. BSD system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis. 2. Connect the cable of GDS to the data link connector in driver side crash pad lower panel, and turn on the GDS.
Inspection 1. Turn the ignition switch OFF. 2. Disconnect the temperature control actuator connector. 3. Verify that the temperature control actuator operates to the warm (Driver's side) or cool (Passenger's side) position when connecting 12V to terminal 3 and grounding terminal 4.