The rain pounds against the windshield as you grip the steering wheel tightly, squinting through the darkness. It's past midnight, but you're determined to make it home tonight.

When your phone died earlier while you were visiting relatives, your great uncle offered you his old GPS to help guide you back. The device is ancient, with a cracked screen and buttons that stick, but it still works. A robotic female text-to-speech voice comes to life.

GPS: In 2 miles, take exit 43B, signs for Highway 115 South.