We have owned our Odyssey for 2 mos. now. Not too impressed with the navi unit. Most roads are not updated. Is it worth it to upgrade/update navi with current 2011 disk? I have found the unit under the drivers seat to install. What does it entail to install and update? Also, does the dvd player under the drivers seat play movie dvd's to the navi screen? Thinking this would win my husband over and be a nice bonus we didn't know about!! Thanks in advance for your input!!