Originally Posted by mr_robot

Ok I was trying to swap out to the newer ULF but the one currently on the car has two antenna plugs like this picture:

Cream/purple towards the bottom and black/purple at the top:


While the newer one only has one antenna plug:


Bimmernav notes something about some cars having two but should be both cream colored and to use the one with the purple connector.

But in my case is one cream and one black. What is the other one for?


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