• 31.10 Head unit23
• 31.15 Telephony29
• 31.16 Email/internet/computer/tablet2
• 31.20 Fleet management system/positioning3
• 31.21 Telematics service54
• 31.22 Emergency call system25
• 31.23 Emergency alarm system1
• 31.25 Radiophone/radio data transmission/fax2
• 31.30 Instrument cluster/onboard computer33
• 31.35 Tachograph/toll system11
• 31.40 Voice control system4
• 31.45 Taxi/rental car/driving instruction vehicle6
• 31.50 Display16
• 31.55 Navigation37
• 31.60 Operation/controller/on-board computer23
• 31.65 Radio18
• 31.66 TV11
• 31.67 Media playback/data medium18
• 31.68 Rear Seat Entertainment system4
• 31.75 Audio playback/audio output27
• 31.80 Antenna/antenna amplifier24