Not sure if you are trying to install a fuze into the existing Fog light wiring or looking to install one.
The link below is the Steve Saunders web site which shows how to install fog lights. At the same time you can also pick up replacement/upgrade Fog Light switches from Gold WIng Stuff website also below.
I just installed the Honda LED lights. There is a separate fuse and the fuse is in the harness that comes with the kit. The harness mounts behind the switch paned on the left side by your knee. Behind the switch panel on the right side is a black boot. Pull it up. Mine was facing down to keep water from pooling in it. The connector is located in the boot. The wiring harness with the fuse will connect to that connector in the boot and to the connector coming off the switch you installed in the panel. Both connectors are black. I am not computer savvy enough to send the diagram. If you go to GL1800riders.com there is honda instructions. The instructions are for the Airbag model. I did not pay attention to it and do not know what the difference for hookup would be. Hope this helps you out.
thanks for your help i got a new button the other day still would not work your help clear my head to common sense take old one apart cleaned put together works great now but one question does your little fog light stay on all the time cannot remeber thanks again hankor