• 31.10 Head unit51
• 31.15 Telephony37
• 31.16 Email/internet/computer/tablet6
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service47
• 31.22 Emergency call system29
• 31.30 Instrument cluster/onboard computer63
• 31.35 Tachograph/toll system15
• 31.40 Voice control system5
• 31.41 Voice output2
• 31.45 Taxi/rental car/driving instruction vehicle1
• 31.50 Display12
• 31.55 Navigation60
• 31.60 Operation/controller/on-board computer11
• 31.65 Radio37
• 31.66 TV16
• 31.67 Media playback/data medium43
• 31.68 Rear Seat Entertainment system4
• 31.75 Audio playback/audio output15
• 31.80 Antenna/antenna amplifier27