I have a 2014 Silverado 1500 High Country, the USB ports at the front of the center console under the radio do not work. They do not work with the key in any position in the ignition. I have checked fuses and nothing is blown, every other form of accessory power outlet work just fine. The connection in the back of the plug is solid. I read on here people had tried to disconnect the negative terminal for a few minutes and then it worked, I tried that with no such luck. Anybody have any ideas? Thanks