The sound is coming from your Instrument Cluster instead of the Speakers. A couple various things, including low battery can change this. It usually goes back to speakers eventually (at least it does for me) on the next drive.
There is actually a setting you can change in Forscan to force it to...
The only solution I was able to find is the item below:
https://www.amazon.com/dp/B09GNKJLKV
I installed this on my 23 Pro, when I had it, and can confirm it works just as described. Install was relatively easy as well. I decided to not add it when I got my XLT ER as the FordPass app had...
Can you take a picture of your LH switch pack and share? It's possible the previous owner added ACC/LKA to your Pro and the truck is having an issue with the new button cluster.
I swapped in the adapter @UncleTony made and removed my Extended Harness solution. My extended harness had been having some errors so I also used a new USB cable (and even ran a second one that is sitting there in case I get issues with the current USB cable). No error codes. Thank you for this...
Usually when I remote start the truck to heat/cool it, the truck starts for 15 minutes and there is a button on the bottom of FordPass that let's you extend to 30 minutes.
I noticed today the extend option has disappeared in my FordPass. My truck, now, only lets you run remote start for 15...
I have used both. 15" screen has Wow factor, but the on screen controls are a bigger pain than using physical dedicated buttons. 12" screen is still quite large, and it feels like a large screen for a vehicle. I prefer the 12" screen, the physical buttons make it worth while.