• 31.10 Head unit10
• 31.15 Telephony9
• 31.20 Fleet management system/positioning2
• 31.21 Telematics service29
• 31.22 Emergency call system18
• 31.30 Instrument cluster/onboard computer21
• 31.35 Tachograph/toll system2
• 31.50 Display14
• 31.55 Navigation11
• 31.60 Operation/controller/on-board computer8
• 31.65 Radio17
• 31.66 TV17
• 31.67 Media playback/data medium13
• 31.75 Audio playback/audio output29
• 31.80 Antenna/antenna amplifier23