• 31.10 Head unit78
• 31.15 Telephony130
• 31.16 Email/internet/computer/tablet7
• 31.20 Fleet management system/positioning5
• 31.21 Telematics service29
• 31.22 Emergency call system60
• 31.23 Emergency alarm system9
• 31.25 Radiophone/radio data transmission/fax7
• 31.30 Instrument cluster/onboard computer77
• 31.35 Tachograph/toll system11
• 31.40 Voice control system57
• 31.41 Voice output4
• 31.45 Taxi/rental car/driving instruction vehicle8
• 31.50 Display15
• 31.55 Navigation81
• 31.60 Operation/controller/on-board computer14
• 31.65 Radio81
• 31.66 TV11
• 31.67 Media playback/data medium65
• 31.68 Rear Seat Entertainment system4
• 31.75 Audio playback/audio output64
• 31.80 Antenna/antenna amplifier29