This is how my Nav looks... On top of the nav, I can listen to XM, Pandora, Ipod, USB, AHA, HD radio, or stream blu tooth off my phone.. Factory Nav doesn't come close to a nicer aftermarket double din..
I can watch movies too
First Nav Screen
It also has route avoidance, which is extremely handy when you are trying to avoid the ghettos, like in St. Louis..
The green lines are roads I have driven on.. it keeps track for you, if you wish..
Did someone say backup cam? I can run split screen nav/backup cam while driving as well..
Drag and Drop Customizable menu screen
Can go thru phone contacts, texts, recent calls, etc...
XM/Sirius
Keeps track of fuel costs and mileage..
Custom routes..
And then there's movies.....
I also have lifetime traffic updates.. Not useful in Montana, but it will send me an alert if there is a traffic jam/ accident and give me the option to reroute around it..