I have the factory Nav system and use it quite often. I have a toggle on the speed sensor switch. It allows you to use all the features of the Nav while driving. I also have the Nav2go switch so my Nav screen plays DVD,s along with the rear monitor. As far as Nav units go, I would not say this unit is bad in any way. It is actually quite good. But as usual, you can get much better than factory. It never costs me less though. I also end up getting top of the line aftermarket. lol
In my last Titan I had the Kenwood KVT-915DVD head and the Kenwood KNA-DV4100 Nav unit.
I must say the Kenwood was a much better unit. First, having a touch screen, made inputting locations quick and easy. Also the Nissan Nav screen and the Rear DVD screen have terrible resolution compared with the Kenwood.
My Kenwood install in my 2005 Titan with pictures is on this site.
Factory System Details
I will be selling all the Kenwood equipment if anyone is interested. I also have the Kenwood Sirius unit.
__________________
[IMG]

[/IMG]
2008 No Fear Extreme Titan 4X4 CC LE
Tint, Extang Platinum Classic, Nav2Go, Factory Nissan Sirius !!STOLEN 2-28-08!!