Originally posted by exexpat
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I do have a question in regards of the computer, a lot of E39 guys desperately want to upgrade to an aftermarket navi unit, but we lose the OBC function that offers a lot of neat tricks on the car, is there anyway to have a custom system that retains OBC function but yet still do all the basic stuff? I'm DYING to have a navigation system in my car, but I still use lot of OBC functions.
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