Mine works great, until I have to find a road opened after 2004. Then I'm hosed. So I use the TomTom. The only good things about the nav radio is there's no ugly black center "button" and the compass display on the radio face is cool (but that disappears every so often necessitating the reinsertion of the disc.)

This radio is not a selling feature. But now that Kelly Blue Book shows the trade-in value of my 05 coupe as $9500 I can't afford to sell it anyhow.