I'm a cyclist using predetermined routes on back streets to reach a destinatiton. And downloading a map from Googlemaps to my Nuvi 260w seems easy enough. Plug a USB cord from my computer to my Nuvi, get a route on Googlemap, click on "Send" on the menu above the map, click on the "GPS" option, then "Send". Done! Problem is, only the destination address selected in Googlemaps is sent, not my custom route drawn using Google's drag and drop feature. The route to my destination is then devised using the parameters selected under "Tools", my Nuvi determining it's own route.

Is there any way a custom map can be programmed into a Nuvi 260w?