OK I guess I will trace the wires this weekend. Now I am really curious as what it is. Like I said It was one owner car with CPO when I bought it. It has factory fogs and I do not see anything extra when compared to other 335i that are the same year. I don't think it could be for aftermarket stereo since it has Idrive.
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2007 335i sport sedan fully loaded, fmc, downpipes, PTF custom tune. Sold
2012 X5 50i fully loaded. ESS TUNE
2017 X5 M Donington Grey
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