I knew you couldn't do it with gmaptool alone. I brewed up a map by using gpsdaemon to extract some small .img files, and the MD2, IDX, and TYP from a gmapsupp.img, joined them with gmaptool, and threw it in the GPSr, but no joy: no search for addresses.
Thanks for the link. I do use OSM too...they do have a lot of information that the Garmin maps don't. They are a good complement.
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