• 31.10 Head unit48
• 31.15 Telephony39
• 31.16 Email/internet/computer/tablet19
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service40
• 31.22 Emergency call system19
• 31.23 Emergency alarm system5
• 31.25 Radiophone/radio data transmission/fax7
• 31.30 Instrument cluster/onboard computer49
• 31.35 Tachograph/toll system17
• 31.40 Voice control system4
• 31.41 Voice output1
• 31.45 Taxi/rental car/driving instruction vehicle14
• 31.50 Display12
• 31.55 Navigation55
• 31.60 Operation/controller/on-board computer10
• 31.65 Radio38
• 31.66 TV25
• 31.67 Media playback/data medium47
• 31.68 Rear Seat Entertainment system26
• 31.75 Audio playback/audio output22
• 31.80 Antenna/antenna amplifier35