The only item installed on the APIM is the Sync 3.3.19052 app file. I recommend that you reformat this unit from 3.3.19052 to the current Sync 3.4.21194, with the new voice file and DAB file. DO NOT install Gracenotes with these files.
Files for Sync 3.4.21194:
APPS - 5U5T-14G381-ET_1627475308000.TAR.GZ
VOICE - 5U5T-14G391-AP_1626914045000.TAR.GZ
ENH_DAB - 1U5T-14G658-AG_1626915602000.TAR.GZ
After these files are installed, run the Interrogator tool and see what the storage indicates.
Gracenotes installation after successful installation of the above files:
4U5T-14G423-AC_1615425645000.TAR.GZ
NOTE:
It is very unusual for there to be only an app file installed without any others. It appears that the unit was reformatted from Sync 3.0, as the model in question were OEM with Sync 3.0. If that is the case, the reformat did not finish the installation, looking at the partition structure above. This is why I suggest to just reformat the unit and fix it properly.
EDIT:
Now I remember, you used another update that did not agree with your car.
Downloading Sync 3 update with Nav in a car without Nav. - Ford / Sync 3 - CyanLabs Official Community
The resolution was to install the files similar to above.