All my speakers are working except for my rear ones in the back. I opened the trunk and looked underneath and they are not pluged in. The wires are cut and hanging down. The only thing that is attached is the speaker to the little box that looks like an amp and a little wire hanging down from it. How do i get my rear speakers working again? How do i wire it? Can i just bridge the wires to the speakers on the back seat door speakers? Help. Thanks