• 31.10 Head unit47
• 31.15 Telephony27
• 31.16 Email/internet/computer/tablet10
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service46
• 31.22 Emergency call system28
• 31.30 Instrument cluster/onboard computer43
• 31.35 Tachograph/toll system15
• 31.40 Voice control system4
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display8
• 31.55 Navigation38
• 31.60 Operation/controller/on-board computer10
• 31.65 Radio34
• 31.66 TV19
• 31.67 Media playback/data medium27
• 31.68 Rear Seat Entertainment system19
• 31.75 Audio playback/audio output16
• 31.80 Antenna/antenna amplifier28