The Avic N1 is a very cool unit... a bargain, really.
DVD, CD, MP3, touch screen, navigation built in, and performance stats just like a G-meter - and then some, since it also does do speed, etc.
That's slick.
However, the Kenwood's navigation is slightly superior, and the Excelon decks generally have slightly superior sound quality.
Downside on the Kenwood is that just the navigation add-on unit is generally close in price to the cost of the entire Avic-N1 unit.
So, in my mind, that begs the question...
If you are going to spend that kind of money - why not simply buy the Kenwood's Navigation add-on, at this point?
You'll end up with a unit that's superior to the Avic-N1 in all respects, and you'll spend less money doing so - and you are already familiar with the ergonomics of the Kenwood DVD unit. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
If you were going into this fresh - I'd quickly point out the bang-for-the-buck of the all-inclusive Avic-N1...
But in your case, you've already got a very nice Excelon unit. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif