• 31.10 Head unit100
• 31.15 Telephony96
• 31.16 Email/internet/computer/tablet21
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service29
• 31.22 Emergency call system45
• 31.23 Emergency alarm system16
• 31.25 Radiophone/radio data transmission/fax7
• 31.27 Intercom system4
• 31.30 Instrument cluster/onboard computer97
• 31.35 Tachograph/toll system16
• 31.40 Voice control system18
• 31.41 Voice output3
• 31.45 Taxi/rental car/driving instruction vehicle14
• 31.50 Display11
• 31.55 Navigation40
• 31.60 Operation/controller/on-board computer21
• 31.65 Radio39
• 31.66 TV31
• 31.67 Media playback/data medium47
• 31.68 Rear Seat Entertainment system43
• 31.75 Audio playback/audio output45
• 31.80 Antenna/antenna amplifier31