was wondering if anybody has got this to work. i built the cable and and i used a rs232 to usb converter. i downloaded the hd radio software hdradiopcr from mitchjs website. when i turn on my laptop, i hear the box click to turn on and then it will click a few more time. roadrunner will not recoginze it at all. i am at the point where i am about to break down and just by the usb cable to just be done with it, i just dont want to spent the $40 just yet.