rmu

Hello all, I just purchased a few RMU2040's to replace our current business radios. I am attempting to program the frequencies through the CPS software but I do not have the ability to select or change the current channel frequencies. When I go to click the drop down arrow to adjust the...

Does anyone know where I can buy a remote head kit for a Relm RMV50 mobile radio. Or how to possibly make it myself?