While Android Auto provides a convenient, safety-first interface for the road, its strict design guidelines often limit what drivers can actually view and control. To bypass these constraints, a clever DIY setup demonstrates how an old Android smartphone can serve as a dedicated secondary dashboard display.
By mounting a spare device alongside a car's primary infotainment system, users can keep useful data in view at all times. This secondary screen can handle full Android apps, detailed widgets, or specialized information that standard in-car platforms typically restrict or hide while driving.
Repurposing an unused handset in this way offers a practical second life for aging hardware, expanding in-cabin utility without interfering with primary navigation and hands-free calling.
Check the original report on XDA Developers for full details.
