A lot of newer cars come standard with an in-dash GPS these days.  This can be good and bad depending on who makes the car.  However if your car didn’t come with one stock be glad you have a variety of units to choose from!  Pioneer’s AVIC-F90BTis a pretty slick choice if you’re looking for a little bit of everything.  It plays DVDs, has bluetooth, a port to hardwire your ipod, voice command, and of course turn by turn navigation.