MOST signals at the CIC control unit, that are not defined in the system circuit diagram:
In/Out Signal Source/sink Function
In
Decoded audio signals DVD changer > Speed-dependent volume control
In
Information DVD changer > Metadata (ID3 tags)
In
Date, time, language Instrument cluster > ZGM > Transfer of ambient conditions
In
Kl. 58g Light switch > FRM > ZGM > Button lighting/instrument lighting
In
Data, audio signal ULB-SBX >
Data, audio signal, USB interface,
Center console
In
Data, audio signal ULB-SBX >
Data, audio signal, mobile phone
in snap-in adapter
Out
Rad_on signal > Top-HiFi amplifier
Rad_on activation signal for Top-
HiFi amplifier
Out
Audio signals >Top-HiFi
Audio signals (subsequently con-
verted in Top-HiFi amplifier and
output to individual speakers)
13
F01 Audio Systems
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