• 31.10 Head unit46
• 31.15 Telephony36
• 31.16 Email/internet/computer/tablet6
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service46
• 31.22 Emergency call system28
• 31.30 Instrument cluster/onboard computer42
• 31.35 Tachograph/toll system12
• 31.40 Voice control system5
• 31.41 Voice output2
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display10
• 31.55 Navigation60
• 31.60 Operation/controller/on-board computer11
• 31.65 Radio35
• 31.66 TV16
• 31.67 Media playback/data medium43
• 31.68 Rear Seat Entertainment system4
• 31.75 Audio playback/audio output14
• 31.80 Antenna/antenna amplifier25