Dynamically Creating Google Maps Via the Directory and Google Maps Plugins

In this forum post (https://premium.wpmudev.org/forums/topic/add-a-google-map-to-directory-listing) there was a discussion on how to add a Google Map to a Listing.

What I'd like to know, is how can I add a Google Map to a listing based on a custom fields?

Example: User, Bob, signs up to add his store to a directory. He inputs his address into multiple CustomPress address fields (Street, City, State, Zip). When he views his listing, it's created a dynamic Google Map for him.