I have an 07 EC300. Ive taken off the light and the speedo. I would like to remove the switch gear for the horn, indicators, lights etc, and just have an aftermarket kill switch.
Take your switch bezel apart and trace the wires to the kill button.
Cut those wires and splice in your new kill switch. Any Jap bike kill switch will work.
I used a YZ250 kill switch without any problems. I just connected the wires to the black and yellow coming from CDI and the soild black coming from the CDI and I was all good.