Well, I'll throw in my opinion (again) just for kicks. My beleif in theft protection rests solely on insurance. Well not solely, I try to park cars in safe places. But the bottom line is if a theif want the car, the radio, the cool Porsche logo on the steering wheel, the theif is gonna get it. (Unless were dealing with a complete looser theif, in that case, a fake red flashing light will work