• 31.10 Head unit35
• 31.15 Telephony42
• 31.16 Email/internet/computer/tablet4
• 31.20 Fleet management system/positioning3
• 31.21 Telematics service35
• 31.22 Emergency call system31
• 31.23 Emergency alarm system3
• 31.25 Radiophone/radio data transmission/fax1
• 31.30 Instrument cluster/onboard computer83
• 31.35 Tachograph/toll system14
• 31.40 Voice control system10
• 31.41 Voice output1
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display16
• 31.55 Navigation71
• 31.60 Operation/controller/on-board computer18
• 31.65 Radio64
• 31.66 TV21
• 31.67 Media playback/data medium33
• 31.68 Rear Seat Entertainment system8
• 31.75 Audio playback/audio output39
• 31.80 Antenna/antenna amplifier42