Setting default audio output on home assistant

hello, I am using Spotify Connect add-on but I have problems selecting my default audio output on home assistant.

i have an external amplifier connected via USB that gets recognized only when I turn it on, and I can use it if I select it as default audio card from the Terminal on home assistant (following this steps Selecting default soundcard)

the problem is that every time I reboot home assistant the default audio card revert back to the raspberry internal audio card and I have to write that lines on the terminal to get it connected to my external usb sound card again.

is there a way to set up an automation or something else that reminds my home assistant configuration that I have a usb sound device connected and It have to connect to it as the default audio output?

thank you

have you found any solution to this?