• 31.10 Head unit58
• 31.15 Telephony124
• 31.16 Email/internet/computer/tablet21
• 31.20 Fleet management system/positioning7
• 31.21 Telematics service46
• 31.22 Emergency call system60
• 31.23 Emergency alarm system22
• 31.25 Radiophone/radio data transmission/fax7
• 31.30 Instrument cluster/onboard computer59
• 31.35 Tachograph/toll system11
• 31.40 Voice control system29
• 31.45 Taxi/rental car/driving instruction vehicle21
• 31.50 Display17
• 31.55 Navigation101
• 31.60 Operation/controller/on-board computer17
• 31.65 Radio77
• 31.66 TV31
• 31.67 Media playback/data medium60
• 31.68 Rear Seat Entertainment system16
• 31.75 Audio playback/audio output53
• 31.80 Antenna/antenna amplifier51