Hi! I have a 2014 Ultra Limited with Boom Audio. Firmware is current. CB was working fine. Without any indication, I stopped hearing anything. However, if I open the squelch all the way, I can hear the normal noise, weak signals, etc.. And the person talking to me. Close the squelch one notch and it's all quiet. Any thoughts? I walked into a local dealership, but got the expected "we know nothing, bring it in and we'll have someone look at it" so we can take your money.. Thanks!