My front turn signals dont flash, but the rear do. The dash arrow turn signals dont flash when the rear turn signals are flashing. When the 4way flasher is pushed in all turn signals flash including the dash turn signal arrows. Also there is a connector unplugged under the dash (drivers side). It has a light blue wire and a brown wire going to it. The brown wire goes up to the ignition and has what appears to be an inline diode. What does this connector plug into. I think I'm missing the connector it plugs into. It may have something to do with the headlights. Any ideas?