I have 2008 GT and would like to know if I can change out the nav system and head unit for a newer model? I've looked at pictures of newer model dashes and they look quite similar all the way up through 2011.
The newer one has high resolution and software.
However, the new headunit is now inside the dash behind the display.
The '08 one is in the cargo bay. I wonder if that is going work physically, not to mention the software compatibility.
Good luck.