Last year my wife got a puppy and the puppy ate the cord on my Senn HD-461headphones. I am just getting around to fixing them. I am trying to take the cup apart so I can solder a new cord in place, but I can't figure out how to get them open I search the internet and nothing. I know they are not very expense, but I got a few cords I can use so why not try it. Any help would be really great and thanks in advance.