i have a custume bow with 2 12 inch audiobhans n one blew. so im leaving that one in and powering the other. and before that my friend turned the subs around in the box and i put them back and i think my friend took out a cord that hooks up to the sub and the inside of the box threw the voice coils or whatever and there was only one positive and one negitive wire and my friend said i needed two so i got another one and hooked it up and my subs wont work.everything else is hooked up right. i need major help