How do you clear cache in data? My AA was working well until a few days ago when it suddenly stopped. When I connect phone to car via USB, I get indication to "check you charger connection. Make sure the cable and charger are properly connected. If you're using a cover case, try removing it". I used two different charger cables and both don't work. My iPace does not recognize my phone connected to it any longer. I can use AA on phone and blue tooth my audio to car, but no direct connect anymore. Any suggestions?