Are you working on turn signals or head light? Blinkers going too far because there isn't enough of a load on the circuit. Burnt bulb in the front, or a wire not hooked up, maybe that's why they don't work and the back are going real fast. If you are putting in LED bulbs, without a resistor thwy qill not load the flaher enough either, and it will flash very quickly. As for color of the wire, usually you can Google wire diagrams for specific vehicles.