9-5 Sport Wagon (9600) V6-3.0L Turbo (B308) (2003)
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Automatic Volume Control: Description and Operation
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.
