An independent developer has launched a new open-source tool called AA Experiments, which gives Android Auto users with root access on their phones direct control over the system interface and the ability to enable over 100 hidden experimental features that Google restricts during its gradual rollout.
Overcoming slow updates and software restrictions
Google typically relies on server-side flags to test new features in Android Auto and launch them over extended periods. Developer HighwindBR explained that the AA Experiments project began due to his desire to overcome the long wait for enabling the Light Theme, before the project expanded to cover dozens of other system features.
The list of experimental features that the tool allows toggling between includes:
- Customizing Gemini Assistant features within the car.
- Applying interface designs and colors automatically derived from the wallpaper.
- Providing quick settings panels and edge-to-edge extended map screens.
- Enabling advanced multi-card media control panels and full-screen mode for applications.
Mechanism and compatibility with updates
The tool consists of a management application for control and a software module that runs via the LSPosed framework, where it connects directly to the Android Auto system installed on the phone and runs in the background without the need to recompile the application or modify the original APK package.
To address compatibility issues and avoid system crashes, the tool links modifications to the specific version of the Android Auto application installed on the device. If Google releases a new update that changes the code key signatures, the tool automatically disables conflicting settings instead of forcing them and causing the car screen to stop working, while providing an option to restore default settings with a single click.
What does this mean for system users?
Android Auto users often face delays in receiving updates and improvements announced by Google. The AA Experiments tool provides a technical solution that gives advanced users full flexibility to test features before their official release. However, given that the tool requires root access and the LSPosed framework, its use remains limited to professional users, noting that the tool works entirely offline and is free of any tracking or data collection mechanisms.