y have a radio Bosch KF164D but with no frontend and y understand that it can be use as a repeater without the frontend,please can you help my with some information?maybe a schematics for the radio or to tell my were y can find the PTT pin in the conector or inside the radio?!y attach a picture of the radio to PC interface that y need for conecting the radio to PC for a Echolink repeater.y am a radioamateur with the call sign YO8SXT from Romania,my name is Cristian.thanks