Your phone and car may have a bad Bluetooth connection. Turn off Bluetooth on both of them, then turn it back on. — dpa Q: I use Google Maps on my Android phone, an LG K51. When I'm at home, and the phone is using WiFi, I hear the app's voice directions. But once I'm in driving my car, the voice directions can't be heard. What's wrong? — Doug Gwost, Shoreview, Minn. A: There are several possible reasons that Google Maps' voice directions don't work in your car. Some are caused by phone settings and others are the result of phone-to-Internet or phone-to-car connections. Here are some things to try: