• 31.10 Head unit5
• 31.21 Telematics service1
• 31.22 Emergency call system1
• 31.30 Instrument cluster/onboard computer43
• 31.35 Tachograph/toll system8
• 31.50 Display4
• 31.65 Radio2
• 31.75 Audio playback/audio output1
• 31.80 Antenna/antenna amplifier1