Yes, to use Carsifi for wireless Andriod Auto it needs to be connected to the USB. As far as I know there's no second USB port, though I wish there were!So that adapter needs to be permanently connected to the car? To the one usb port we have? Any idea if there is an option to connect elsewhere? Could there be a second usb port behind the screen or behind the dash maybe?
As I don't like cables trailing everywhere I simply have the Carsifi wired in to the port and put the phone on a non-slip mat on the shelf above. For those long journeys where I need to charge the phone, I simply keep a cable in the glove box so I can connect the phone up for wired Android Auto.
I so wish there was USB to the shelf even if it was just power. It's a right nuisance how it is at the moment. I've added power in to most of my other cars over the last few years but the Yaris just seems harder because of the shapes and accessibility. Of course, I could always rig up something straight off the battery in the boot but that's not particularly convenient.
