Neil you might also consider the Kenwood-MPV7019. I was just about to order the Pioneer unit but found that the Kenwood seems to get just as good if not better reviews than the Pioneer. It also has an numeric remote that might make it easier to access those mp3s. (esp. If there are more than 100 on a cd). Check out this forum on head units. .
Can anyone post a link or the mastersheet photos on how to install the headunits in an xterra.
Any help appreciated. Thank You.