iPhone 5s will not charge in USB in car
I recently switched my old iPhone 4 for a new iPhone 5s. The only problem I've had is that now my 5s will not charge in my 2013 Ford Explorer. I can still charge my old iPhone 4, my wife's 4s & my daughter's 5. However, my 5s will not charge via the in car USB or the standard outlet found in the vehicle. When I plug the 5s into the USB it does give my the "lightning bolt" showing that it is charging. However, it will not gain a charge. When I plub into the standard outlet it won't even show that it is trying to charge. Any insight is helpful. And yes, I'm using an Apple charging cord. ?????
iPhone 5s, iOS 7.0.4