The cable was so stiff, I didn’t try to pull it through the bracket. Instead I removed the upper screw holding the right HDD bracket in place. Then I rotated it counter clockwise enough to just move the cable behind it and out of the way. Once I did that, I screwed the bracket back into place. I reversed the process when I put the machine back together. It’s a Torx-10 BTW.
Did this tonight. I couldn’t get the right speaker out. But I was able to move it far enough to the right to be out of the way of the logic board.