• 31.10 Head unit2
• 31.15 Telephony26
• 31.20 Fleet management system/positioning48
• 31.21 Telematics service16
• 31.25 Radiophone/radio data transmission/fax12
• 31.30 Instrument cluster/onboard computer54
• 31.35 Tachograph/toll system89
• 31.40 Voice control system1
• 31.50 Display4
• 31.55 Navigation25
• 31.65 Radio22
• 31.67 Media playback/data medium11
• 31.75 Audio playback/audio output5
• 31.80 Antenna/antenna amplifier26