• 31.10 Head unit6
• 31.15 Telephony20
• 31.16 Email/internet/computer/tablet2
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service21
• 31.22 Emergency call system4
• 31.25 Radiophone/radio data transmission/fax2
• 31.26 Passenger stop request system1
• 31.30 Instrument cluster/onboard computer18
• 31.35 Tachograph/toll system17
• 31.40 Voice control system4
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display5
• 31.55 Navigation6
• 31.60 Operation/controller/on-board computer9
• 31.65 Radio14
• 31.66 TV7
• 31.67 Media playback/data medium12
• 31.68 Rear Seat Entertainment system4
• 31.75 Audio playback/audio output9
• 31.80 Antenna/antenna amplifier7