Navi works as expected (Mazda 6 2009 with stock Navi, I purchased it with canbus). Shipment was very quick. It is fast and working well so far. Installation is very simple and it took me about 2 hours. Some info: 1. You can install Android auto and have all its features. 2. Steering wheel controls work. 3. GPS (antena in a glovebox) works very good 4. External mic provides good sound quality 5. Display is very good. 6. Bluetooth works 7. It displays info on top small screen (although for custom apps like Spotify it doesn't) 8. It shows AC info when you change settings although there is no app to display overall car status (open doors, parking sensors etc). I am very happy with the purchase overall.