I thought android auto was going to be cool. I've gotten to use it with my flagship phones and several late model rentals. Every single time, it will disconnect

I thought android auto was going to be cool. I've gotten to use it with my flagship phones and several late model rentals. Every single time, it will disconnect upon occasion while driving (and using nav) forcing me to unplug replug. I haven't waited long enough to see if it could recover ina minute or so. When I enable it by plugging my phone into the car, it tells me it is going to enable Bluetooth. That is like getting high speed internet only to have the modem do dialup. Does anyone know why a forced wired protocol requires substandard wireless connectivity?