That's exactly how I felt about our old Volvo. We bought it used and didn't even know it had nav until I accidentally hit the the buttons on the back of the ste

That's exactly how I felt about our old Volvo. We bought it used and didn't even know it had nav until I accidentally hit the the buttons on the back of the steering wheel during our test drive. It was a disc based system, but pretty fast. The discs were 10 years old and some points of interest were out of date, but it was surprisingly good for being that old. If there was a missing waypoint or destination, we would just enter the street address in and be good to go. The interface was what I loved though. The screen popped up out of the dash* which meant that it was super easy to see without looking down at the center console, and it didn't replace our radio or other screens with the nav, the screen was nav only. The controls were cursor based (not pointer, but just menu selection) so the buttons were on the back of the steering wheel, so you didn't even have to take your hands off the wheel to run it. All it needed was a 4-way pad and an enter and back button. There was an IR wireless remote that the passenger could use. One of my favorite features was that it easily supported multiple waypoints, search along route, and it stored routes even when you turned the car off. Taking a multi-day road trip? No problem! * How the motorized screen still worked on a 10 year old volvo is probably a small miracle considering what didn't work on that car.