• 31.10 Head unit12
• 31.15 Telephony11
• 31.20 Fleet management system/positioning8
• 31.21 Telematics service7
• 31.22 Emergency call system2
• 31.25 Radiophone/radio data transmission/fax2
• 31.30 Instrument cluster/onboard computer47
• 31.35 Tachograph/toll system41
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display5
• 31.55 Navigation12
• 31.60 Operation/controller/on-board computer3
• 31.65 Radio13
• 31.67 Media playback/data medium15
• 31.68 Rear Seat Entertainment system1
• 31.75 Audio playback/audio output8
• 31.80 Antenna/antenna amplifier12