I have wired rotory becons onto 50, 60, and 70 series combines, I ordered kit #RE239930. I hooked up a second grain tank full sensor as the switch, then wired it to the hazzard circuit. Used a relay to controll the power output to the beacon. Run key power to relay and grounds to relay, run another wire to the hazzard circuit then connect. relay diagram(run key power to #86, ground one side of switch then run another to #85, then ground light, run other wire to #87 and run key power to #30) if you want the hazzards to come on as well run the wire from the hazzard circuit to #87A of relay. Make sure to install a fuse on your key powers to protect the circiut.