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Old 06-24-2009, 07:29 AM
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davidr davidr is offline
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Quote:
Originally Posted by KiwiJochen View Post
Dealer GT1 makes the entry into the car's option list (stored in the instrument cluster) to say that the car officially has nav.
This then in turn controls the messages that the cluster sends out on the databus

So the car coding is still required, although there is a 80% chance you will have no functional difference on the X3.
I am not sure, as very few people have retrofitted nav to the X3.
My X3 retrofit worked 100% first time without the GT1 option coding (although I have since paid to have this done). I used a secondhand colour MkIV with v29 software which I think included a fix for the flip-up screen.- worked first time.

Recoding MkiV to colour should fix problem. You could also try resetting the region info for the CID radio to Europe.
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