• 31.10 Head unit39
• 31.15 Telephony76
• 31.16 Email/internet/computer/tablet11
• 31.20 Fleet management system/positioning6
• 31.21 Telematics service36
• 31.22 Emergency call system38
• 31.23 Emergency alarm system16
• 31.25 Radiophone/radio data transmission/fax2
• 31.30 Instrument cluster/onboard computer45
• 31.35 Tachograph/toll system9
• 31.40 Voice control system19
• 31.45 Taxi/rental car/driving instruction vehicle8
• 31.50 Display15
• 31.55 Navigation70
• 31.60 Operation/controller/on-board computer17
• 31.65 Radio53
• 31.66 TV25
• 31.67 Media playback/data medium39
• 31.68 Rear Seat Entertainment system7
• 31.75 Audio playback/audio output30
• 31.80 Antenna/antenna amplifier18