:D
Hit menu, then hit the volume icon. Then hit the upper left speaker icon, the lower left corner (no icon), the upper left speaker icon again, and the lower left corner again. It brings up a system menu that has the NAV override on it. (Plus many other items that I don't know what they do).
If this doesn't work, let me know. I have a 2006 300 awd that it worked on.
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brn2rnjk1, you are a hero....how to enable the navigation system to receive commands while moving has been an unanswered topic for a long time. Your info works perfectly....so thanks!
As fate would have it, I am now wondering what use I might make of my new found powers to tweak the navigation system. Of course, I will use them for good...not evil. You have already anticipated that question and responded. I am hopeful some of the resident tweakers and hackers will eventually share what they learn. :D