Maybe this isn't possible but does anyone know a way I could get a KMZ file that includes a raster image to save into Google My Maps. I can get the KMZ to display fine with image by uploading it to Google Docs and searching for it in Google Maps but when I go to save it in My Maps, the KMZ layer disappears and thus doesn't save it. I would use the KML import in My Maps but it doesn't seem to support uploading the imagery, only the vector data. Any ideas?
Google MyMaps KMZ is limited compared to Google Earth by Google Maps servers (file sizes are also limited to 10mb)
Is your KML/KMZ publicly accessible? you should be able to overlay your data in google maps
Test it out like this example: http://maps.google.com/?q=http://www.vta.org/bike_information/scc_bikeways.kmz
Is your KML/KMZ vaild - test it out here: