Very nice. 

What did you hook the USB connection to for power? The 120V you are getting out of the power inverter?
What did you hook the USB connection to for power? The 120V you are getting out of the power inverter?
Yes sir it would be like connecting the adapter directly to the power inverter just that now the connection is internally, so to speak.

Yeah, that is the easiest way of a having a USB connection but I love to complicate my life and prefer to have the device permanently installed.