Is there a way to hook up the Google Map plugin to a custom post Taxonomie?

Hello, I run http://www.phoenixlocalshops.com with the directory plugin as well as Google Maps, and Custom Posts. I was curious if there is a way to have Google Maps read from a Taxonomy as opposed to a custom field. I imported my listings from a different program into Directory, however, the CSV import software did not recognize the Custom Post field. It does recognize Taxonomies. If I can get a field created by Taxonomies to be recognized by Google Maps, then I can just reimport everything without having to go through every listing.