Smorg is giving St Peter the 7!
I like that box! I had one that did absolutely nothing. My fifty-seven Chevy I started dirt tracking with was about as aerodynamic as a tank, less than some! I opened up things in the front and rear then cut away everything on the passenger side and built a huge wind tunnel leaving me a cockpit to sit in to drive. . One day I was bored sitting around the gas station and made a box about that size made out of sheet aluminum. It was well shaped and with rivets every inch and a half or less no way anyone was going to see into it. Then I riveted it on top of the wind tunnel in the 57. The more I told other dirt trackers it was just an empty box the less they believed me. I found people crawling over under around and through the car!
After a month or six weeks things had quieted down so I drilled out the pop rivets, drilled a small hole in the box, another in the wind tunnel, and twisted a red wire and a blue wire together, fourteen gauge to look right. I tied a knot in the wires inside the box, another knot where the wires went in the hole in the top of the wind tunnel. No amount of anything but the most violent pulling was getting those wires out! Here we go again on a Saturday night! Lasted three or four weeks then I took the box off to let it remain a mystery to most people. Sometimes you just have to make your own fun!