I am planning on buying a 2004 S80 and trying to decide whether to have the navigation system installed. I would like opinions from anyone having any experience, good or bad, with regard to the performance of this option. I live in the US (Florida) and do a little traveling for my business. I currently use my laptop with Mappoint software and a gps card. It works well and has the advantage of the large laptop screen. It is a bit cumbersome though as it has to sit on the seat next to me and has several wires poking out from it (one for the antenna sitting on my dash and one for power). The screen on the nav system isn't as large, which is a drawback, but, it is facing forward and the controls are on the steering wheel (I think) making it alot safer to use. Currently, I need to take my eyes off the highway and look down at the seat next to me to see the map. I have to take my right hand off the steering wheel to type on the keyboard and again my eyes need to leave the road. Again, not very safe. I appreciate any information anyone will give me. Thanks