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I'm trying the Combox retrofit and I can't figure out why my vendor doesn't see the Combox. I know it has something to do with my install possibly the wiring. Can anyone one give any recommendations? I have went over my wiring diagrams and they seem correct. Any suggestions is appreciated.
Wiring diagram
TCU
Pin 1 to combox pin 25 color white
Pin 17 to combox pin 1 Red - Blue
Pin 19 to combox pin 12 Brown - White
Pin 11 to Combox pin 21 Shielded
Pin 31 to Combox Pin 18 White grey
Pin 33 to Combox pin 15 yellow
Pin 36 to Combox pin 14 brown
Pin 37 to Combox pin 21 White Yellow
Pin 38 to Combox Pin 20 White blue
Pin 50 to Combox pin 17 Grey and blue
MULF per installation doc from BMW
Shield pin 22
Ws/GN Pin 10
WS/RT pin 24
VI pin 23
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