Nissan Repair Questions? Ask a Mechanic for Answers ASAP
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The language is not something that is a option to change. The language is burned into the software. So if you would want the language changed, you would need to remove the AV unit and send it out for the language conversion. Befor doing so, of course you want to find a place that can do this. That I don't know who can do it. I do know that Model Electronics in NJ does repairs for our dealer. If they can do repairs, i am sure they would have a direction to answer where it can be done for you.
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Yes, they should be able to re-write over the existing software over there to have maps of china. Other wise if they can't, then the whole AV unit would need to be replaced with a China one.