2009 Navigator Nav system
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I appreciate your answer. But the '08 w/sync doesn't doesn't come close (I think) to the other features of the new Sony? Nav in the '09. I just got the '08 and came very close to getting the '09--but it was almost $11000 more, and would have had to wait 6-9 weeks. And the backup cam is in the nav, not in the mirror--much easier to see.
I am hoping someone with the background in audio/auto electronics will come up with a patch to get the '09 head unit operating in the '08.
I am hoping someone with the background in audio/auto electronics will come up with a patch to get the '09 head unit operating in the '08.