Hi I need help! I am wondering how to hook up a Clarion CD deck, not in the car. I remember my friend did it before, but I don't remember how to hook the deck directly up to a 12v battery. It is on a push cart that I carry stuff around on. The speakers are all hooked up and everything. I just need to know where to connect the yellow, red and black wires. I know the black is the ground so I'm not sure If I ground it right to the metal cart, or onto the negative battery terminal. And secondly, which wire goes to the positive battery terminal...the red or yellow? I'm confused and don't want to blow everything up so I'm just asking for help! Thanks!