it shouldn't be that hard to hang a couple of good speakers ( bose ) high along the wall outside and direct the wiring back to the reciever/amp providing of course you have enough speaker ports! , just keep in mind if you "turn it up" inside late at night don't forget the "symphony" outdoors ( if possible have an a/b switch option so you can keep the outdoor speakers seperate from the ones inside.

sincerely ~ ..."my dog! wants to party all the time! , party all the time!"... :goof: