Google Home Custom AAC Audio Request

I've had HA for years and one of the scripts I've got is to set the volume on my Google Speaker in the Living Room to 10% and then play a custom AAC url on it.

I've since set up a Google Home Routine so when I say "Keyword", it runs an action of "Scene" which contains my script name.

However this set up means that if I say "Keyword" on the speaker in say the Kitchen, the result is the audio playing in the Living Room.

Are there any variables that can be passed between Google Assistant so that HA is aware of the requesting device?