BMW 1 series F20/F21 (2011-2015) Most data bus circuit

AMPLIFIER (W/ TOP HIFI) (LEFT SIDE OF REAR COMPT) CD CHANGER (LEFT SIDE OF REAR COMPT) COMPUTER DATA LINES SYSTEM DIGITAL TUNER (LEFT SIDE OF REAR COMPT) GRN WIRE MOST-BUS CONNECTOR ORG/GRN WIRE SATELLITE RECEIVER (LEFT SIDE OF REAR COMPT) TCU (W/ TCU) ULF (W/ ULF) ULF-SBX (W/ ULF-SBX) ULF-SBX-H (W/ ULF-SBX-H) VIDEO MODULE (LEFT SIDE OF REAR COMPT)