It's not us mfg's but the radio mfg's. The problem is what they charge for the licensing I'm guessing.
I have nav on my brand new jeep and have yet to use it. Tom Tom app on my iphone is just way easier and ties into google.
PLEASE do not send questions via Private Message, my inbox fills up too quickly. Post questions in the forum as a new thread so that other users can benefit from the answers. Use Private Messages for sensitive information only (VIN, Contact info or things you do not want the public to see).