• 31.10 Head unit11
• 31.15 Telephony21
• 31.16 Email/internet/computer/tablet2
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service25
• 31.22 Emergency call system6
• 31.30 Instrument cluster/onboard computer23
• 31.35 Tachograph/toll system8
• 31.40 Voice control system4
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display9
• 31.55 Navigation11
• 31.60 Operation/controller/on-board computer14
• 31.65 Radio11
• 31.66 TV5
• 31.67 Media playback/data medium15
• 31.68 Rear Seat Entertainment system5
• 31.75 Audio playback/audio output20
• 31.80 Antenna/antenna amplifier13