Acoustic signals
| Acoustic signals | 
The SID unit can produce acoustic signals for various situations.
The signals are assigned priority as follows:
| • | Warning | |
| • | Time alarm (SID unit 3 only) | |
| • | Speed warning (SID unit 3 only) | |
| • | Reminder (warning, ignition key and seat-belt) | |
| • | Confirmation (of button depression) | |
| • | Direction indicators (TICK TACK) The SID receives requests for acoustic signals from other systems on pins 16 and 17. | |

 
     
		