Got this USB wireless #AndroidAuto adaptor as I was fed up with having the USB cable trailing across the car into the passenger footwell (where the phone is in or on top of one of my kit bags) - it works quite well and doesn't even seem to randomly disconnect as much!
Might not be the most secure thing (and curiously you have to connect to the devices Bluetooth but then it transfers the signal to the #MIB2 connection just like using the cable!) but it creates a 5 GHz rather than 2,4 GHz wifi SSID so not going to go that far, and its only going to display the navi app from a bright red car that you would likely already be able to see in order to receive the wifi signal..