• 31.10 Head unit1
• 31.15 Telephony4
• 31.23 Emergency alarm system11
• 31.25 Radiophone/radio data transmission/fax3
• 31.30 Instrument cluster/onboard computer49
• 31.35 Tachograph/toll system22
• 31.50 Display8
• 31.55 Navigation14
• 31.65 Radio7
• 31.67 Media playback/data medium4
• 31.75 Audio playback/audio output1
• 31.80 Antenna/antenna amplifier2