Small hi fi digital amplifier, a power adapter, and some wire...10 mins of labor and it works again, but thanks for not taking me seriously....oh and by the way I'm a master diesel tech and theres no way in the world that small box would fit the mountain of tools I have to do my job just thought maybe with all the experts on this forum I could learn something but ehhh waste of time I guess. Oh and the best part only 25 bucks for the amp.