I'm looking at picking up a 2003 G35 but was curious of two things:
1) is is possible to have factory Nav unit installed if it didn't originally come with it?
2) Is the factory Nav worth it or should I just go with an aftermarket setup?
Thanks
Ken

 

It is possible:

https://g35driver.com/forums/audio-video-electronics/134519-project-completed-adding-factory-navigation.html

 

very expensive to have the oem nav installed. i called the dealership and asked them, they said it would come up to around 7 grand. they told me i'd be better off just trading the car in. just go aftermarket.

 

don't bother with the factory navi, it's a waste of time and money. you can get so much more for less with after market.