• 31.10 Head unit19
• 31.15 Telephony31
• 31.16 Email/internet/computer/tablet2
• 31.20 Fleet management system/positioning9
• 31.21 Telematics service34
• 31.22 Emergency call system6
• 31.23 Emergency alarm system4
• 31.25 Radiophone/radio data transmission/fax3
• 31.30 Instrument cluster/onboard computer91
• 31.35 Tachograph/toll system45
• 31.40 Voice control system4
• 31.45 Taxi/rental car/driving instruction vehicle2
• 31.50 Display14
• 31.55 Navigation19
• 31.60 Operation/controller/on-board computer9
• 31.65 Radio18
• 31.66 TV4
• 31.67 Media playback/data medium28
• 31.68 Rear Seat Entertainment system5
• 31.75 Audio playback/audio output16
• 31.80 Antenna/antenna amplifier20