what is the difference between avic z1 and eclipse AVN-5435 that makes z1 so expensive, is it the brand or the features? what features?

 

the BEST navi system you can get is KENWOOD double din with the added navigation add-on which is made by garmin. You don't need no $300 discs to update the maps, simply with a SD memory card.

 

^ even though you brought this up from a very long time ago, when stating a brand would it not be beneficial to state a model?

 

I guess it would be, but Kenwood only had ONE Navigation unit so I didn't think it would be too necessary to post it since as long as you put Kenwood Navigation it will come up.

Anyway here is the model #: KNA-G510 This is the navigation unit by kenwood by "powered" by Garmin. Can be combined with ANY Kenwood Screen/Double Din