Traffic Pro?

You mean similiar to this:
Harman/Becker TrafficPro II

For those that don't have the GPS system, ya gotta take the driver tour on this thing...No maps, no street names. Now, try to imagine yourself following these directions. When I first got ours loaded up it said to make a left turn in 100 yards..Must've been 7 or 8 possibilities in the town we were in. No street names either and takes foooorever to recalculate.

For users, this page might be kinda phun for ya
Traffic Pro

And, as I said earlier, the development time for the GPS software is 1-2 years. So, to get the thing in a 2004 production vehicle you're probably looking at data from 2002.