There once was a company that made expensive car stereo covers. The cover was injection molded plastic.
It looked like a beat up AM only car radio. It even had a button missing.
You would put this decoy over your expensive car stereo. I thought it might be perfect for the new mobile DC-daylight radio's, like the FT-100D.
However, I learned this company went out of business.
The car crooks got wise to his trick!