The following options are needed for remote parking according to the G30 technical manuals (Driver Assistance Systems manual available in the sticky on the main G30 general chat forum):
• Steptronicsporttransmission(OE*2TB)
• ComfortAccess(OE322)
• BMWdisplaykey(OE3DS)
• ParkingAssistantPlus(OE*5DN)
• Professionalnavigationsystem(OE*609)
Those options contain all of the required hardware, I didn't know comfort access was required but apparently the comfort access antenna is needed for the RC parking
