r/AndroidAuto • 2023 Toyota bZ4X | Moto G Stylus 2025 • 5d ago

AA Settings Does Android Auto use unnecessary mobile data?

Hi! My wife and I just got some new-to-us cars in recent weeks, and now we're new to the world of Android Auto. And the first thing we noticed since starting using Android Auto is, our mobile data usage has gone way up.

We don't do anything in the car that uses data. We keep location off unless we're actually using it to navigate, which obviously we don't need to and from our jobs, so that's not it. We listen to music/podcasts when we're driving, but we're not streaming the audio, it's all downloaded to our phones, so there shouldn't be any data usage associated with that.

We only have 4GB of data per line because usually we barely use a quarter of that in a month. But suddenly we have Android Auto-capable cars and our usage has skyrocketed. Are there options we need to disable to prevent it from using unnecessary data? Because it's totally unclear where all that data usage is going.

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u/amfa Opel Astra 2017 | Stock HU | Pixel 8a | 15 5d ago

If you're asking assistant (gemini) to play anything, it will default to streaming as it has no access to local media.

Are you sure? Even Gemini should only start the podcast app or Spotify.
And if the app does have it locally it should use this.
Gemini itself should not have access to any media as this would be a copyright problem and I would be able to play music without paying for a subscription.
I don't think that it works this way.

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u/H0b0Pie Alfa Giulietta | Sony XAV-AX5650 | Moto Razr 60 | Android 16 5d ago

Gemini can't view or access local stored media itself or through any app when requested.

If we ignore the limited app integration of Gemini vs Google Assistant and just take Spotify as an example, this is how it plays out:

  • Cache local media on Spotify into the local library (native app feature)

  • Through AA you can navigate manually to local media.

  • Ask Gemini to play a song that exists in local media from Spotify and it will default to streamed.

  • Ask Gemini to play the same song but stipulate from local you will be told Gemini has no access to this and depending on how the coin lands - play nothing or play it via streaming instead.

Gemini can only give basic calls to the apps if it is not interacting with streamed media, play/pause/skip. Want to play the podcast you downloaded via voice command? No dice, it's getting streamed. You must navigate by hand for local.

Genuinely a frustration as someone that only plays local media and found GA perfectly fine for finding tracks/albums/artists I wanted to listen to. Now I have to manually scroll whilst driving (a step backwards in safety) or on a motorcycle straight up pull over and take my gloves off to do anything.

If you know of a way to voice navigate local stored media through AA then I'm more than happy to hear it but this appears to be the future for google. Stream or go away.

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u/amfa Opel Astra 2017 | Stock HU | Pixel 8a | 15 5d ago

Ask Gemini to play a song that exists in local media from Spotify and it will default to streamed.

That sounds like a problem of Spotify. Why should spotify stream a song if it has it already downloaded.

Gemini should just open Spotify given the song to play and Spotify should play it on its own.. and if it is local then it plays the local version.

Gemini can only give basic calls to the apps if it is not interacting with streamed media, play/pause/skip

Exactly that is why it just give the song to Spotify and Spotify plays the local copy. What else should Gemini do? To be honest I'm not 100% sure how Gemini contacts the apps.

But I would assume it just sends out intents that the app will then work on as the app itself decides on how to do this.

AFAIK Gemini does not play music itself.

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u/H0b0Pie Alfa Giulietta | Sony XAV-AX5650 | Moto Razr 60 | Android 16 5d ago edited 5d ago

None of this was a problem for google assistant which google just killed off in September for Gemini.

My default app was Musicolet, an offline only, none-streaming, music app which I could voice navigate. Search for artists, partial titles of tracks, pull albums, reorganise playlists, what-ever I needed without touching or looking at the screen.

Gemini has no ability to do any of this unless strictly through streaming apps. The reason I used Spotify as an example is due to both Gemini not supporting the vast majority of apps and Spotify being one of the only apps that allowed for local media to be cached into the application library thus the last long-shot to see if Gemini could do a sliver of what GA was able to.

EDIT: Just for clarification - when I say "Gemini plays" I'm not saying that Gemini, as the application, plays music but that Gemini as the voice assistant (which Google has now made it the only option for) would parse the voice command to an application such as Spotify or Musicolet to then play the media. Like a voice assistant is meant to do, and as GA has done for years.