o0o.... SOB.... i bought the 389 no F*ing wonder i had such a damn hard time doing this crap. ECS tunning sent me that crap saying it was for my E53. and yea internal is exactly the same since it work sin my car lol. i had a funny feeling that the wire was a lil funny since the instructions said E46...with this wire the plug is white but the color wires go to the same slot as the AUX wire that u need. That why when i was installing the wire i thought it would replace the white plug since the AUX had a white plug. But eh i think 2 pictures of the Aux install isnt as good, i am gonna try to add more.

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2005 Black x5 3.0i