My theory on how ground pounder car audio systems originated

Have you ever noticed a really strong base ground pounding car stereo?  Here in Arizona we have alot of mexicans and they love these things.   My theory is that the original pounder car audio systems were set up as a way to set of car alarms.  By doing this the car break in thieves could weed out the alarmed cars and do break ins on the unalarmed cars.  After a while stupid white boys started copying.  Its in the same vein as to why crotch dragging pants started for shop lifting.