HeadlessUnit from Quartz68 transforms an Android device into an Android Auto receiver for tablet-based or aftermarket dashboards. It runs Android Auto locally or accepts a stream from another device, providing a high-resolution, reliable display with USB and wireless projection options. Key capabilities include self-projection, a VPN-based wireless workaround, automatic aspect-ratio adjustment, and day/night mode switching. The app targets DIY car enthusiasts who want a dedicated Android Auto display on nonstandard hardware for testing and daily driving.

Modern codebase and a purpose-built video pipeline

The app pairs Kotlin and Jetpack Compose for the interface with a Rust backend for media processing, a stack chosen to separate UI work from decoding responsibilities. It uses H.265 encoding to reduce bitrate for the stream and supports output up to 1440p at 60Hz, which suits higher-resolution tablets. The Rust component is explicitly used to offload decoding, a technical choice aimed at lowering processor load on constrained in-vehicle hardware.

Setup depends on upstream app compatibility and local permissions

Installing the tool requires the official Android Auto application to be present and a source device that supports wireless projection, so the connection model relies on that upstream compatibility. The app exposes a hidden settings bar that can be revealed by swiping right from the upper-left edge when needed. These requirements mean initial setup is system-dependent rather than purely app-driven.

Designed for installers, automation, and community-driven builds

The app includes a headless mode intended to simplify connections compared with older emulators, and it exposes an Intent API so external automation apps can trigger start and connection sequences. Community feedback highlights the app as a commonly preferred alternative to older receiver projects, praised for easier configuration. Users should evaluate their intended deployment against Android Auto terms and local rules before installation.

Practical choice for builders who need a configurable Android Auto display

The app is a practical option for DIY installers and hobbyists who want to repurpose a tablet as a vehicle head unit and who prioritize performance and automation. One operational note: setup depends on the presence and compatibility of the official Android Auto application and on following platform rules. For builders focused on a configurable, high-fidelity dashboard, the app rewards careful installation and configuration.