If your using the factory wiring...its all plug and play..just did it to wifes car...wiring is all there from factory on an ex..hers is a 94....subharness goes between headlight switch and foglight switch....and outside there is a little barrel plug behind the drivers headlight in the area of the washer resevoir...blue in color...other than just cutting..the outline is there from the factory on the back of the bumper...very very easy, just cut it with an air saw...and enjoy