Navigation upgrade?

[mikeinmn]

The dealer tells me my nav system needs to be replaced. Its really been acting up and as you know its not the most modern unit anyway. It will be replaced under 3rd party warranty using OEM parts for about $3k in parts alone. This after they replaced the $2k screen for me just a couple months back. Anyway, I may be able to settle with the warranty company on a less expensive aftermarket unit. I'd want full interoperability with the vehicle systems, controls, etc., OEM look and feel, and add bluetooth music streaming, aux inputs, etc.

I'm aware of the Dynavin unit and the need to install a MID in the glovebox for the OBC. Are there any other good/better options out there?

Thanks!