Dumb Ebrake question

[Ohio911]

I am finally adding ebrakes to my 73 911 with 930 trailing arms. The original cables where cut at the hubs an I am not sure what is the best way to feed the cables from the hubs up to the tunnel. do they attach to the trailing arm with the screws on the cable? Does someone have a picture of how the cable attaches or rides up to the tunnel? There is a hole on the trailing arm right where my brake lines go. do i use a bracket here?

thanks

[real550A]

There is a white plastic bracket bolted to the spring plate right after the adjustment locknuts on the cable. I'm not at home, or I could post a pic.