I have a working ft-5100 with low audio. I tried the cap replacement which would have worked fine if not for my horrible soldering skills. The mic now has no audio, if fact, it's in the trash. Does anyone know of a replacement? Where would someone go to find a used 8 pin mic? I know many other 8 pin mics must work with this rig, i see a ft-5100 for sale on ebay that includes a MH-1B8. thanks.