I experienced the same problems. The NAV system would not boot and as a result I lost all controls related to the NAV screen. I found that the DVD player in the trunk was not functioning properly. After several months investigation I discovered that the DVD unit could be repaired by the original manufacturer, ALPINE. I had my unit repaired for under $200 and the NAV system is now fully operationalTheir address is: Alpine Electronics of America, Inc., 2012 Abalone Avenue, Unit D, Torrence, CA 90501 Telephone: 800-320-6909 or 310-326-8000
DHSmith, November 2009
