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AutoNavAlerts: Google's map and routing on Android Auto, with camera alerts only for cameras facing your way

AutoNavAlerts, Part One: A Sat Nav Of My Own For Android Auto

AutoNavAlerts is an Android Auto navigation app I am building on Google’s Navigation SDK: Google’s map, traffic, search and turn-by-turn, with a camera alert system on top that loads my own PocketGPSWorld subscription and only alerts for cameras facing my direction of travel. Part one covers what it does today, what Google allows a third-party app to do on the car screen and what it holds back (incident reporting, the speed limit, touch on its own controls), why every user brings their own Maps key and their own camera data, and how the code was written with Claude: a design document first, 87 commits in under two days, the hard rules that came out of the test bench, the bugs the agents wrote and how each one was caught, and the first real drive in the car.

23rd October 2026 Â· 16 min Â· 3395 words Â· Damien Dye