So the 205W I plan to power off the Cigarette aux port on my two stroke snowmobile using a USB adapter, Any issue with that? I picked up a few different mounts to see what set up I like better. Any tips on setting the unit up? Do I need to or should I update the factory Maps along with adding a Trail map? The maps are quite all that are installed in the nuvi. Thanks

I did read the manual just a little confused.