Help! I stupidly mixed up all my power cords during a recent move. The one I thought went to it, has a female connector that is a three prong connection. But the 525 only has a male two prong output. Also, when attaching that cable, it doesn’t feel very secure. But, the unit does power up just fine, although I have yet to connect speakers. Should I be looking for a cable that has a female two prong connection? Or does it even matter?