adding .bmps to preloaded POIs

 

I've looked for this and wasn't able to find anything about it. I have a nuvi680 with preloaded Ford dealer POIs on it which I would like to add the Ford.bmp icon. Is there a way to do this?

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Just want to get to where I'm goin'

I don't think so but...

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nüvi 680, nüvi 770, Garmin Mobile XT, etc...