I own a 2013 335i with pro nav nbt and the 8" screen as standard. Trying to fit an F15 10.25 CID part code 9347878-03 to my nbt with the CID cable on my car being 6119261850-01. When I marry the two up there is no life in my CID. I know the screen works as I seen it in operation before I purchased it. Am I wasting my time here?
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