• 31.10 Head unit71
• 31.15 Telephony146
• 31.16 Email/internet/computer/tablet9
• 31.20 Fleet management system/positioning7
• 31.21 Telematics service29
• 31.22 Emergency call system103
• 31.23 Emergency alarm system17
• 31.25 Radiophone/radio data transmission/fax14
• 31.27 Intercom system4
• 31.30 Instrument cluster/onboard computer57
• 31.35 Tachograph/toll system8
• 31.40 Voice control system43
• 31.45 Taxi/rental car/driving instruction vehicle17
• 31.50 Display18
• 31.55 Navigation52
• 31.60 Operation/controller/on-board computer15
• 31.65 Radio39
• 31.66 TV35
• 31.67 Media playback/data medium53
• 31.68 Rear Seat Entertainment system7
• 31.75 Audio playback/audio output43
• 31.80 Antenna/antenna amplifier46