DanFerg Posted February 20, 2020 Report Share Posted February 20, 2020 Haven't had luck with any videos, forums, repair shops, etc. Decided to see if anyone here had a similar problem with a solution. Car: 2013 Ford C-Max Hybrid May 2019: Started making popping sounds randomly through the speakers even when stereo was turned off. When stereo was turned on and the popping happened, the sound would immediately stop working. Display still worked, buttons still worked, just no sound. This was quickly fixed by turning off the car and turning it back on. December 2019: Popping sound got worse. It was like a constant stream of pops at this point. The radio pretty much never worked at this point. Display and buttons still worked. January 2020: Popping stopped completely, but now the display doesn't respond to the buttons. Time and date are still on, but the stereo screen doesn't appear when I push the button. When I push the button a second time, there's this little animation that the screen would normally show when the stereo was being turned off. The rear parking sensor alert sound has also stopped working. I'm curious if this is a speaker issue... I've taken apart the system but haven't seen anything unusual or out of place. All fuses are working properly, too. The dealer hasn't been much help, and a couple independent repairs shops have said the model is "too unique" to know for sure if they can fix it. ? Please let me know if anyone has any ideas! Quote Link to comment Share on other sites More sharing options...
SnowStorm Posted February 20, 2020 Report Share Posted February 20, 2020 Wow! Sounds exactly like my car - see here and here (actually see whole topic). More recently I had Forscan connected and saw a code for a grounded microphone so maybe that's the culprit. I haven't gone after that issue yet. I just leave fuse 79 out. Quote Link to comment Share on other sites More sharing options...
fbov Posted February 21, 2020 Report Share Posted February 21, 2020 There have been problems attributed to the car's noise suppression system, which uses the radio's speakers to add "out of phase" sound so engine noise is not as loud. The fix is to disconnect the microphone; look it up on the forum. It was my first thought, but I don't see how it could affect the radio's operation so I didn't reply. Snow's mic comment says maybe it is related. Have fun, Frank Quote Link to comment Share on other sites More sharing options...
DanFerg Posted February 22, 2020 Author Report Share Posted February 22, 2020 I've tried the microphone solution and replaced the 67, 69, and 79 fuses. Still nothing. Nothing seems disconnected that shouldn't be. And my car currently isn't producing any strange sounds. It's not producing any sounds at all. ?♂️ Quote Link to comment Share on other sites More sharing options...
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