Stop theives from stealing your expensive lenses.

In the day had a Jeep CJ5. Put a decent stereo in it, knew someone would take a crack at it. I crossed 1”x1/8” steel under it, sharpened all the edges. Figured they’d go in at night, see the supports, grab them quick and yank. More than once I found blood on the floor mats. Looking back surprised someone didn’t then go postal on my dash