I thought I might share some vids that might be helpful to those thinking about upgrading their electrical systems. The first video is a walk through of the "Big 3" and the second video is regarding the function and importance of your alternator. More vids are in the works. But, we hope that these might help educate consumers and protect their investments. http://www.youtube.com/watch?v=p82xRzCr-lc http://www.youtube.com/watch?v=Fv66sP9EXvQ