The front cigarette lighter does not work, and the heads up diplay and the a/c, heater does not work. None of the lights come on at the disply on the dash for the a/c,heat system. Checked all fuses and they are intact. Replaced fuses just in case they were bad. Did not find any wires that were shorted together. The actual dash portion of the system has a motherboard in it. Could that be bad? How could all this be connected?