i have a 2014 optima lx with just the basic radio. i upgraded my head unit with the pioneer 601ex and it worked great the first day. the next morning i got in the car the digital clock on the dash was out and radio was nonfuntional. i checked all fuses and rechecked the connections and connectors on the head unit. all seem fine. still cant get any power from radio or clock. can anyone help me?? and i also unplugged the pioneer and even put the oem radio back in but it too had no power.