I have a pair of harman/kardon speaker the probem I have is that the wires were all cutt off to be used for something else I had the right speaker whch is the one with the power supply built in working fine but the left speaker on the other hand works but dont reach the same volume as the other there is only 5 wires 3 on the right and 2 on the left. the colors are on the right yellow and wight with an uncoated wired I presumed was th ground on the left colors are red and wight? how do I fix this?