I don't have any pictures of how I mounted mine, but it worked ok. I cut a disc from 1/8" fiberglass sheet slightly smaller then the ID of the tube. Slit a piece of w/washer tubing and glued it around the perimeter for a tight fit, but could still be removed. Cut a hole in the center of the disc and installed a high temp grommet that just fit around the exhaust pipe. It was basically a friction fit, but worked pretty well. Ended up using a bit of silicone to help hold the disc in place in the turbine tube, and drilled a few 3/8" holes in the disc to increase airflow. When I built my second one, I mounted the radio box forward and ran it out the transom.