Fixed it. Pulled the cover and found the black wire had come loose from the crimp with the two pre-wires. I just pulled the old crimp off and re-crimped the three wires together. Good as new. Weird how that did that. We DID hit some bad roads on the loop that goes around the south-west side of Nashville, TN. Otherwise we use those USB ports a lot and up to this point it has been good. Oh well...its's all fixed now and we continue continuing on...