Just visited the Toyota.ca site as my friend is looking to get a Matrix to replace the family's saturn ION.. in any case. a quick link caught my eye about Toyota Navigation. I clicked it and pretty much sent me
http://www.toyota.ca/NWS/english/custom/c950014e.html. it claims that it is available on the Camry, Solara, Highlander, Tundra, Sequoia and Sienna. Now..I know that the US has had the Navigation for a while now...but was wondering if this system could be added to my current 2003 Gen 5.