I am going to use a 2.5 stero cable instead of the TI cable. I was wondering if you could take an old pair of headphones and cut off the cable and use the cable that with an adapter that converts to 2.5mm. What kind of serial connector do you use? I got a D-Subminiature Connector(Solder-type, 9-Position female) and a D-Subminiature Connector hood. Would this type work or do I need a different one? Which one will work better?