Speed-dependent volume
| Speed-dependent volume |
| General |
Automatic volume control is controlled by the car's speed to compensate for background noise that occurs when the car is moving. The function is active at speeds over 60 kph.
| Function |
TC/ABS transmits a speed signal on the P-bus. This is read by MIU. MIU then transmits the information on the I-bus, which the main unit can read to regulate volume. The level is increased when speed increases and is lowered when speed decreases.
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