• 31.10 Head unit43
• 31.15 Telephony46
• 31.16 Email/internet/computer/tablet4
• 31.20 Fleet management system/positioning3
• 31.21 Telematics service41
• 31.22 Emergency call system35
• 31.23 Emergency alarm system3
• 31.25 Radiophone/radio data transmission/fax1
• 31.30 Instrument cluster/onboard computer88
• 31.35 Tachograph/toll system14
• 31.40 Voice control system10
• 31.41 Voice output1
• 31.45 Taxi/rental car/driving instruction vehicle3
• 31.50 Display23
• 31.55 Navigation57
• 31.60 Operation/controller/on-board computer20
• 31.65 Radio58
• 31.66 TV22
• 31.67 Media playback/data medium39
• 31.68 Rear Seat Entertainment system8
• 31.75 Audio playback/audio output48
• 31.80 Antenna/antenna amplifier55