Headunit Revived Turns Old Phone Into Android Auto Receiver, Avoiding $200 Head Units
Updated
Updated · XDA Developers · Jul 18
Headunit Revived Turns Old Phone Into Android Auto Receiver, Avoiding $200 Head Units
2 articles · Updated · XDA Developers · Jul 18
Summary
A free app setup let an old Samsung Galaxy A15 work as an Android Auto display in the car, giving the author a usable in-dash alternative without replacing the factory unit.
Headunit Revived runs on the spare phone while Wireless Helper runs on the main phone; after a Wi-Fi Direct link, Android Auto loaded reliably enough after a few connection attempts.
Audio still played through the car's Bluetooth speakers by disabling the app's Audio sink option, avoiding the old phone's weak speakers while keeping navigation and apps on the screen.
The workaround sidesteps roughly $200 aftermarket head units and the risks of compatibility problems, lost built-in features, and difficult installation, though it does not add extras like parking cameras.