brother bill, i am guessing that when you said tower you are meaning the bradley cabnet? if so no , whe you got your guru you also got the power raptor right? the way it hooks up is this way plug the smoke gen into the wall out let, then plug the power raptor into the wall outlet, then plug your bradley cabnet into the plug on the side of the power raptor, then i plug the 12v power pack into the plug on the back of the smoke gen. then take the little 12v plug in and take it to the guru and plug it in to the to plug that says 12v power, then take the other littel cord that plugs it into the raptor and the other end goes to the guru where it says fan, , you will be able to swicth the smoke gen on and off without afecting the guru operation, one thing to rember is if you leave it all hooked up like i do on the back porch when not in use unplug the 12v power suply if the power goes out and then back on with it still hooked up it will turn on by it self , not good if you have it coverd and you are not home. if you have any more ? let me know. and happy fathers day to you and all,