• 31.10 Head unit8
• 31.15 Telephony19
• 31.16 Email/internet/computer/tablet2
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service25
• 31.22 Emergency call system5
• 31.30 Instrument cluster/onboard computer23
• 31.35 Tachograph/toll system8
• 31.40 Voice control system4
• 31.45 Taxi/rental car/driving instruction vehicle2
• 31.50 Display5
• 31.55 Navigation10
• 31.60 Operation/controller/on-board computer9
• 31.65 Radio19
• 31.66 TV4
• 31.67 Media playback/data medium12
• 31.68 Rear Seat Entertainment system4
• 31.75 Audio playback/audio output18
• 31.80 Antenna/antenna amplifier9