Data bus: digital disc player/changer module C – no communication
Data bus: digital disc player/changer module B – no communication
Data bus: digital disc player/changer module A – no communication
Data bus: audio unit output amplifier- no communication
Data bus: aerial module – no communication
Data bus: radio – no communication
Data bus: lamps control module: rear- no communication
Data bus: lamps control module: front – no communication
Data bus: headlamp level control module – no communication
Data bus: automatic lighting control module – no communication
