• 31.10 Head unit9
• 31.15 Telephony111
• 31.16 Email/internet/computer/tablet2
• 31.20 Fleet management system/positioning5
• 31.21 Telematics service21
• 31.22 Emergency call system61
• 31.23 Emergency alarm system20
• 31.25 Radiophone/radio data transmission/fax7
• 31.27 Intercom system1
• 31.30 Instrument cluster/onboard computer106
• 31.35 Tachograph/toll system10
• 31.40 Voice control system21
• 31.45 Taxi/rental car/driving instruction vehicle21
• 31.50 Display12
• 31.55 Navigation79
• 31.60 Operation/controller/on-board computer9
• 31.65 Radio70
• 31.66 TV4
• 31.67 Media playback/data medium45
• 31.68 Rear Seat Entertainment system4
• 31.75 Audio playback/audio output38
• 31.80 Antenna/antenna amplifier58