I've had some interference issues with the scanner I was using for my feed (PRO-24, it does not have CTCSS/DCS decode), so I figured I'd use this old P110 radio I have. Audio from the speaker is great. However, when I connect a mono audio cable to the 1/8 plug and plug it into a computer, I get a click/pop noise when the audio begins and ends (aka breaks squelch). Using an earpiece, the audio from the radio's jack is just fine. Has anyone else had this kind of issue, or know what can be done to fix it?