I like testing different audio apps, but Plexamp never settled into my Android Auto setup the way I wanted it to. That does not mean Plexamp is a bad app, or that everyone will run into the same problems. It does mean that, for my mix of local files, NAS-hosted albums, and self-hosted media servers, I eventually wanted something faster and easier to manage from the car.
The app that took its place is Symfonium. It is not trying to be a general-purpose video player, and it is not limited to one self-hosted media ecosystem. For a music library spread across local storage, Plex, Jellyfin, and network sources, that flexibility matters more than another flashy interface.
Why I Started Looking Beyond Plexamp
My issue with Plexamp was not one single failure. It was the collection of small frictions that became more noticeable in the car, where I want music playback to be boring in the best possible way.
In my setup, Plexamp sometimes felt slower than I wanted when pulling music from a NAS. Album order and metadata handling also did not always behave the way I expected. Those are personal experience claims, not universal defects, so they are best treated as setup-specific rather than as a verdict on Plexamp itself.
That distinction matters. Plexamp has plenty of fans, and someone with a cleaner library, a different phone, or a stronger connection to their server may have a much smoother experience. My own library is less tidy than a normal streaming service catalog. It includes standard albums, live recordings, radio material, and files stored in more than one place. That kind of collection exposes weaknesses quickly.
I previously leaned on VLC for local playback, especially for files already stored on my phone. VLC is still useful, particularly on desktop, but it was not the best match for how I wanted music to appear and behave in Android Auto. I wanted better library browsing, better metadata presentation, and smoother movement between local and server-based music.
Symfonium Fit My Messy Library Better
Symfonium became interesting because it handles more than one kind of music source. In the same app, I could work with local files and connect to self-hosted services. That made it a better match for a library that is split across different systems.
The practical benefit is simple: I do not have to treat every music source as a separate listening experience. Albums hosted through Plex, music served through Jellyfin, and files stored directly on the phone can all be part of the same routine, depending on how the app is configured.
For Android Auto, that matters. A car interface should not require hunting through five different menus just to find a familiar album or playlist. Symfonium gives enough control over what appears in the Android Auto interface that I could make the app feel more focused. The source notes options such as home, recent, library, and favorites for the Android Auto display, though the exact layout and behavior may depend on the version and device.
- Local files can be part of the same listening workflow as server-hosted music.
- Plex and Jellyfin libraries can be used from one music-focused app.
- The Android Auto view can be simplified around the areas you actually use.
- The app is better suited to a music-first library than a general media player in this setup.
That is the main reason Symfonium stuck. It did not force me to rebuild the way my media is stored before it became useful.
NAS Setup Was the First Real Test
The first thing I wanted to know was whether Symfonium could connect to my existing library without turning setup into a project. In the source experience, connecting Plex and Jellyfin accounts was quick, though that should be read as one device-specific setup experience rather than a guaranteed setup time.
Once the accounts were connected, the important test was not whether the app opened. It was whether it could keep playing while moving between local files, Plex-hosted music, and Jellyfin-hosted music. In that test, Symfonium felt more dependable for this particular Android Auto setup than the previous arrangement.
The useful part is that Symfonium does not only point at one source. The app is described as supporting other sources such as Kodi and common cloud storage services, which makes it more flexible for people who keep media in several places. Since source support can change over time, it is worth checking the app listing or documentation before assuming a specific service is still supported.
For anyone using a NAS, the lesson is not that Symfonium will automatically fix every playback issue. Network quality, server performance, file formats, mobile reception, and Android Auto behavior can all affect the experience. The more realistic takeaway is that Symfonium gives a multi-source music library a cleaner place to live.
Caching Is the Feature That Makes It Work in the Car
Streaming music from a home server while driving is convenient until the connection gets weak. That is where caching becomes more than a nice extra.
Symfonium includes caching controls that can reduce how often the app needs to fetch the same data again. The source describes playback caching, offline cache behavior, and a rolling cache that removes older cached data when the limit is reached. Those settings are exactly the kind of controls that matter when phone storage is limited but you still want music available outside the house.
The safest way to think about caching is not as a promise that music will always play perfectly. It is a buffer against normal problems: weaker mobile service, repeated listening to the same albums, and the cost of streaming the same files again and again. If you regularly listen from a self-hosted server, spending time in these settings is worth it.
A sensible setup process looks like this:
- Connect the music sources you actually use, such as local storage, Plex, or Jellyfin.
- Open the cache settings before relying on the app during a long drive.
- Set a storage limit that leaves enough room on your phone for everything else.
- Use offline or automatic caching for albums you replay often.
- Test the setup on a normal drive before depending on it for a trip.
That last step is easy to skip, but it matters. Android Auto music apps should be tested in the actual car, with the actual phone, on the actual connection you normally use.
Metadata Handling Was a Big Part of the Switch
Metadata is one of those details that only seems minor until it is wrong. Album order, artwork, track names, and artist grouping all affect how quickly you can find the right music, especially from a simplified car interface.
The source experience with Symfonium was positive here. Albums appeared correctly, artwork looked clean, and box sets were easier to browse than they had been in the previous setup. Again, that is not a universal guarantee. Metadata quality depends heavily on the files and server library behind the app.
Still, Symfonium made a better first impression than a generic local player for this kind of library. A music-focused app has more reason to care about album structure, artwork, and browsing behavior than an app built to play almost any media file.
If your library is already messy, Symfonium will not magically repair every tag. But if your files are reasonably organized, the app gives that work a better chance of showing up properly on the phone and in Android Auto.
Where Symfonium Still Needs a Realistic Caveat
The strongest reason to recommend Symfonium is also the reason to be careful about overpromising it: the app is best for people who already manage their own music. If your entire listening life is inside a commercial streaming service, this is probably not the app that replaces it overnight.
Symfonium makes the most sense if you have some combination of:
- A local music collection stored on your phone.
- A NAS or home server with albums you want to stream.
- A Plex or Jellyfin setup that includes music.
- A need for offline listening without rebuilding your library around one service.
- A preference for detailed cache, playback, and metadata controls.
It is also worth checking current pricing and platform details before deciding. The source describes Symfonium as a low-cost lifetime purchase at the time of use, but app pricing can change, and store listings are the better place to confirm the current cost.
Why I Am Keeping Symfonium in Android Auto
Symfonium replaced Plexamp in my car because it matched the way my music is actually stored. It handled local files, self-hosted libraries, caching, and metadata in one place, without making Android Auto feel more complicated than it needed to be.
That does not make it the right answer for every listener. Plexamp may still be the better fit if your library already lives comfortably in Plex and you like its interface. VLC may still be enough if all you need is simple local playback. The first-party Jellyfin app may be fine if your needs are basic and you do not care about a more music-focused experience.
For a mixed library, though, Symfonium is the app I would test first. It is practical, configurable, and better aligned with offline and NAS-based listening than the tools I was using before. For Android Auto, where reliability matters more than novelty, that was enough to make it my default music player.