I came out of work this afternoon and went to start my 2014 GMC Sierra All Terrain 1500 and nothing..... No lights in the dash, nothing at all...not even a click when I turn the key over. I opened the hood and tested the battery and its all good for power. I even put a jumper box and it and still nothing. I also unhooked the positive cable at the battery and hooked it back up hoping it would reset its self or something... Any help would be great