Join Date: Jun 2003
Location: New Rochelle , NY, USA
Yes, this isexactly how it supposed to work. The USB cable from the 12 volt plug only has voltage running to it.If you plugged your Buvi to your computer, it will also draw power and keep the Nuvi on. But the connector to your computer also has wires that connect the Nuvi to do data transfer also.I power my Nuvi 360 from a similar setup on my bike. See Pirates Toutatech mount, my bike's Nuvi is shown..
On my new bike, I use a Zumo that has a different setup for power.
Deep Blue 2009 K1300GT