Is there any way to update the 04 stock navigation in the 4dr? Can I buy a new cd that will update the maps/destinations etc? Maybe a cd from a later model?

 

version 6.7 for the 2004 & '05 G35 sedan will be released on Oct 15th. You can pre-order now for a measly $190.00

I currently have v6.3 so I will probably upgrade.

I noticed the 2006 Nav will have another upgrade on Oct 15th too, but it's version 7.4. Are the graphics different on the '06 nav?

go to

http://www.navigation.com/zenrin

On the left side you will see "Update Your Map"....select the "built-in, factory installed" device and then it will ask for your car make and model.

 

I've seen members sell them used. Very seldom though.