the only way you can do that is... run a positive and negative wire from the battery to the speaker terminals on the amp and what that does it changes the resistance in the current going to the amp and it makes the sub think its not a free air sub then as the previous poster said you have to use a special glue when putting it in the box... after that you will be good to go and with those subs probly hitting very hard!! good luck with all that buddy. gimme a holla if you need any help with it i can help you as much as possible on here.