• 31.10 Head unit13
• 31.15 Telephony2
• 31.20 Fleet management system/positioning2
• 31.21 Telematics service19
• 31.22 Emergency call system14
• 31.30 Instrument cluster/onboard computer21
• 31.35 Tachograph/toll system2
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display10
• 31.55 Navigation19
• 31.60 Operation/controller/on-board computer7
• 31.65 Radio2
• 31.66 TV8
• 31.67 Media playback/data medium3
• 31.75 Audio playback/audio output13
• 31.80 Antenna/antenna amplifier18