• 31.10 Head unit16
• 31.15 Telephony4
• 31.20 Fleet management system/positioning1
• 31.21 Telematics service10
• 31.22 Emergency call system5
• 31.23 Emergency alarm system1
• 31.30 Instrument cluster/onboard computer16
• 31.35 Tachograph/toll system16
• 31.50 Display5
• 31.55 Navigation8
• 31.60 Operation/controller/on-board computer1
• 31.65 Radio6
• 31.66 TV1
• 31.67 Media playback/data medium5
• 31.75 Audio playback/audio output8
• 31.80 Antenna/antenna amplifier8