How long have you had that one in service?
That is my horn relay any only operates the horn.
In that pic the power going to the fuse box is coming off the ignition (Green wire on top of fuse box).
My next step is to rewire as you earlier described. #10 off battery to a continuous-duty relay. #10 from relay to the fuse box. Terminal from relay back to ignition. I hope I described that right. (correction will be welcomed)
Thanks