This is not the easiest repair to do a home, unless you have quite a lot of experience in the world of auto mechanics. You need to keep in mind that there is always a risk involved when you are working with electricity, as you will be in this case. If, however, you decide to proceed, consider following the steps listed in this guide, which also includes some useful pictures. The guide is four pages long, so be sure to click on the links at the bottom of each section.