Hey all.. I have 2 questions regarding the PSR800 I need help with. One is can anyone tell me what the size of the external speaker jack is on the top of the radio? The book says 3.5 mm but when I bought an external speaker/mic of that size, the jack on the radio is too big for it. Secondly, does anyone know where I can get a replacement data cable for this radio. A regular USB cable doesn't work when I try to update/download new talk groups into it. Thanks!!