That may be a perfect solution for you and others. But there are some of us were it isn't.you know my brand new 2008 is a Nav model and after dinging around with it for a while I have the perfect solution. I pair my phone to my headset, setup the route on my phone and listen to the lady tell me I am lost. Perfect
First I don't have or want a smart phone. Sold a Iphone 10 that I didn't want.
Second the one on the wing is weatherproof.
Third it is hard to steal the one on the wing when you leave it behind.
Fourth the nav on the wing can still show me were I am and setup a route home even when I don't have cell service .
The one on the wing isn't perfect either but it has never failed to get me home.