ground issues

I have researched a bunch and admit i measure twice and cut once. I have seen pics and diagrams of a lot of machines but not a 97 GTX. I have sene all kinds of opinions where to find the diode. The one i want to believe most is holding the MPEM ,with the fuses to the top one inch to the right...

I have a 2003 sportster 4tec 155hp. I have an issue with blowing fuses. All three of my switches to the right of the steering wheel do not work. Right now the one that constantly blows the fuses is the switch on the far right. Not 100% sure what it is supposed to be for as it is not labeled...