I like the way you would do it. I understand connecting to the big fat red stud and having an inline fuse. I am lost. When you say "signal for a relay off the seven pin stud strip" I am lost.
If you are talking about the strip beneath the Bansco box.
If so, the second and third wire and stud receive power when the ignition is turned on. However, when I turn the ignition off, the second wire remains charged with .15 and the third wire and stud stay charged with 1.15. Refer attached