Good evening, I've been trouble shooting my Yaesu FTM-100 with little resolve. I spent a few days running a mono speaker (I didn't realize I needed to use the stereo to mono adapter) cable for an APRS node which killed audio output from the speaker as well as the external speaker jack. I've got the bluetooth BU-2 unit installed and I've had partial success getting audio to an external speaker; the speaker will play audio for a few seconds before cutting out. I'm waiting to hear back from Yaesu about repairs; anyone else have this problem and find an easy fix? Thanks!