My son brought a gaming chair at a boot sale, we were told it works. However when we got it home the sound wont work and we are missing the blue/output cable. The vibrate does work! I dont know if its the missing cable or the chair is broken. What I am after is a good picture of the ends of the blue/output cable then I can make up what we need... hopefully. Any help advice would be great and make a small boy (Not me!) very happy. Thanks in advance.