Not to be a douchebag, but do you really need one??? I set it and forget it... In all the amps I've had I only installed it, with the 1st one that had it, then found I never used it... So I stopped wasting the time and effort to run and place it... (not that its that hard) Yes I would really need it. I have two young children. I would like the ability to turn the sub amp down when they are in the car with me without having to dig thru the menus on the head unit every time . And not to be a douchebag but since you never even install them then you should have a spare one laying around to send me since you never use them.