they are pretty simple to do, the wire on your old regulator for the gen light will hook up to the small wire on the 2 wire alt plug from the internal reg alt .the large 10 gauge wire in the plug will go directly to the alt output lug as well as the factory charge wireand it should be done. i dont remember the color of the wire from your regulator plug to use .but with the key on if you ground it it have the gen gen light on and when you supply pos to it it should go off with the key on