RocStarNC

I'm having this no audio issue as well (my power liftgate is working fine though). It went out in November 2023. When turning on the car the normal startup chimes come from the instrument panel instead of the speakers. The audio system "looks" like it's working, however there is no sound. All the Sync 3 menus show up and work. Nav works, Android Auto works, just no audio. Rotating the volume knob has no effect. The volume indicator on the screen doesn't even appear when rotating the volume knob. When trying to raise/lower the volume with the steering wheel control the on-screen indicator appears but just shows Audio Volume at level 0 and won't move. I checked for error codes and got two codes: U0238:00-0B "Communication With Digital Audio Control Module D is Lost. -Accessory protocol Interface Module (APIM)" U3000:94-08 "Control Module-Digital Audio Control Module C (DACM-C)" I've performed a soft reset on Sync3. I've tried the hard reset by disconnecting the batter for a couple hours. Neither step resolved the issue. I then sucked it up and took the car to the dealer (where it sat for 3 days before they even looked at it, but that's another story). They got it working again by allegedly performing a firmware upgrade to something (not sure if it was the ACM or the APIM or something else). However, five months later, I'm right back to where I started. The audio went out again last week with the exact same conditions and error codes. I'm not certain my issue is exactly the same as al303's, but should I take it back to the dealer or look for any specific replacement parts? Thanks for any advice.

I found this topic on the forum a few years back. I used this process and it worked like a champ. 2017 Ford Edge Sport with Sony 12 Speaker / Sub system upgrade - Audio, Backup, Navigation & SYNC - Ford Edge Forum

Another forum member posted this a couple years ago. I used this method and got great results. 2017 Ford Edge Sport with Sony 12 Speaker / Sub system upgrade - Audio, Backup, Navigation & SYNC - Ford Edge Forum I hope this helps.

Another forum member posted this great write up last year about replacing almost everything except the head unit. I used this method and got great results.