The serial connection is for computer control of the scanner including trunking etc... If you are just doing an audio feed and have no use for computer control of your scanner all you need is a patch cord from iether the speaker jack or headphone jack on your scanner to an audio input on your PC. They also have stereo jack to USB or serial multipin connector available for input. For those of us using dialup since there is no DSL/HSI available in our county yet, I have been informed I will have to use teamspeak to broadcast since shoutcast requres a high speed feed. I hopefully will be able to pull this off since I am able to hear a lot most days and would love to share with the rest of the hobbyists the wealth of radio info that us backwoods racist redneck country boys have lol. Anyway more later.