If you are poking around a Radio Shack store it's their part number = 274-025B Ron AC7AC K2 #1289 -----Original Message----- Could someone give me the official name (number) of the microphone plug = used to screw into the K2 (and other) radio. I want to buy one for running digital modes and=20 I realized I had no clue what they were called other than an 8 pin microphone plug. Kevin. KD5ONS