• 31.10 Head unit29
• 31.15 Telephony28
• 31.16 Email/internet/computer/tablet3
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service40
• 31.22 Emergency call system19
• 31.23 Emergency alarm system2
• 31.25 Radiophone/radio data transmission/fax2
• 31.30 Instrument cluster/onboard computer39
• 31.35 Tachograph/toll system13
• 31.40 Voice control system4
• 31.45 Taxi/rental car/driving instruction vehicle4
• 31.50 Display10
• 31.55 Navigation51
• 31.60 Operation/controller/on-board computer11
• 31.65 Radio33
• 31.66 TV12
• 31.67 Media playback/data medium31
• 31.68 Rear Seat Entertainment system14
• 31.75 Audio playback/audio output20
• 31.80 Antenna/antenna amplifier17