I have a headphone from an airplane (those with the dual jacks) and I cut off that jack and I am trying to put on one of the standard size jacks (those on cd players, etc). the thing is when i cut both i saw a blue, a red and a copper/bronze wire (or group of wires). So I connected them and tested the modified line while not allowing them to come in contact with each other and I cannot get it to work. I know that the headphone works because I tried it at the back of my computer where the input port and output port lie close and one side was playing; that is understandable since each jack on these dual jack headphones is responsible for an audio channel or side of the headphone. Is there something else that i didn't take into consideration or would this even work?