nav or radio

I just got my Genesis 3.8 a couple of days ago and am completely in love with it. There are only a couple of things I've noticed and wanted to know if they could be changed. I've looked around and found answers to some (driving mode reset when car is turned off. Stinks that it doesn't save, or...

Hi folks, certainly hope someone can help. I have a 2009 3.8 sedan with the upgraded Lexicon radio/speakers, but no nav. I never changed it because then I wont have a display for the climate controls. Has anyone changed theirs? If so any comments or concerns. I have heard of a company called...