Hello timp4411. Like Neil mentions, the unit that came with my Honda is different from yours. I bought it brand new at Honda, and it is the unit that comes factory installed with the navigation option. It also has bluetooth handsfreee-audio, DVD, USB, etc, but it has an SD card that holds all of the garmin maps information, which is where I was able to copy new maps and then the unit would recognize them. I really don't know what would need to be done to have the maps in your unit updated, sorry.
Good luck !!
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