I have a complete upgrade that I never installed. I bought it from a friend that was selling their 2007 and had pulled it from their car.
Here's what the kit looks like. It's quite extensive package. I believe this is compatible with 2006-2009 Hi-Res MFDs only. I have the installation instructions as well. PM me if you have any interest. I'll probably put it on ebay at what I paid for it, $70, and see if I get lucky there..
That link doesn't work for me. "Can't find the server" error. I believe this device circumvents the warning screen that makes you press the 'Continue' button to get to the Nav. It also allows the selection of the options which would get "greyed out" because the car is moving. Please jump in if that is not correct.
There is an easier way to override the NAV nag screen, at least it did for me. Beg borrow or steal a later dated and incompatible NAV DVD update and try to use it. When it fails, reload the original DVD. You will find the later dated DVD overwrites the start up code for the NAV. No more nag screen, just a two second delay.
