# Wireless AA Bridge: reconstructing a wireless Android Auto relay

> Wireless AA Bridge reconstructs a wireless Android Auto relay on a spare Android phone. It presents a USB AOA connection to a wired car head unit, performs Bluetooth and Wi-Fi projection setup with the client phone, and forwards AAP traffic while preserving its in-band TLS exchange.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/elezabi/wireless-aa-bridge>
- Primary source: <https://github.com/elezabi/wireless-aa-bridge/blob/c93ffa0b66c063c1d152e30f5d991fcb5d278fa9/README.md>
- Catalog page: <https://awesomerea.org/resources/wireless-aa-bridge-case/>
- Record JSON: <https://awesomerea.org/resources/wireless-aa-bridge-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/wireless-aa-bridge-case/index.md)

## Requirements & limits

- **Prerequisites:** An Android bridge phone capable of USB accessory operation, a wired Android Auto head unit, and an Android Auto client phone are required.
- **Testing evidence:** The author reports end-to-end operation on one car, client, and bridge combination.
- **License:** MIT license.

## Primary sources

1. <https://github.com/elezabi/wireless-aa-bridge/blob/c93ffa0b66c063c1d152e30f5d991fcb5d278fa9/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.