Thanks, I put mine behind the front number also facing down.
I had mine in the same location on my ‘06. Those were a fun toy to have.I have three on one side and two on the other side. They are mounted pointing downwards in the dually fender cavity in front of the rear tires. The bottom of the horns are just above the bottom edge of the box sides. These images are actually on my last truck but I transfered everything to the new truck in the same locations.
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