How can I disable Google Maps on Android Auto

I like to use Waze on Android Auto. I have these issues - Even though I have Waze as the first app and Maps as the last app, Google Maps invariably shows up in the first few apps. - I use Waze all the time, saying "Hey Google, take me somewhere" works most of the time. - Sometimes it launches Maps instead, even though Waze is already running. - I then say "Hey Google, use Waze to take me somewhere", this works half the time, the other half, it still uses Maps. This becomes extremely annoying when I am already driving. I have to pull over and physically reconnect the phone, sometimes I have to manually select Waze from the apps. **Is there a way to permanently remove Maps or disable it in Android Auto**