• 31.10 Head unit1
• 31.15 Telephony2
• 31.23 Emergency alarm system4
• 31.25 Radiophone/radio data transmission/fax1
• 31.30 Instrument cluster/onboard computer54
• 31.35 Tachograph/toll system12
• 31.50 Display8
• 31.55 Navigation2
• 31.65 Radio2
• 31.67 Media playback/data medium4
• 31.80 Antenna/antenna amplifier1