Front speaker amplifier (354F)
| Front speaker amplifier (354F) | 
| Location | 
Front speaker amplifier (354F)
| Main task | 
Amplify and distribute sound to the front door speakers and the centre speaker on the dashboard.
| Type | 
Control module to supply output to the speaker.
    
    | Connection | 
| Pin No. | Signal type | Description | 
| 9 | Ground | |
| 10 | +30 | |
| 1 | O-bus | Reception. Own bus connection. | 
| 2 | O-bus | Transmission. Own bus connection. | 
   
   Wiring diagram, power supply
   
   