I was looking into upgrading my radio in my 2001 Odyssey (w/Nav). A quick look at crutchfield's compatibility info said "installing new radio will disable Navigation system."
I assume that since the Navigation system uses the radio/amplifier's speakers, and cuts out the radio when "giving directions" that there must be some proprietary connectors between the radio and Nav system. Am I stuck with the factory radio? or does someone know how to make this work?