[mthafcka]

I don't mean being able to set off car alarms from two blocks away. If that's your goal, tear out the OEM sound deadening materials and drill some vent holes in your trunk. Mount some nice blue flashing lights on the roof and call it a day.

this is quoted from sounddeadenershowdown.com

what does he mean by drill vent holes to be heard farwawy (it couldnt be big enough to make a difference and, I thought my system was a lot louder and clearer when i put dyanamat all over my grand cherokee

and where is this supposesed oem sound deadening materials

and whats this talk about blue lights on your roof too