Hello, I purchased a used Sync 2 screen / APIM assembly, but it has a 3rd module between the APIM and the screen. Does anyone know what this module is? Are APIM/Screen assemblies with and without the 3rd module interchangeable?
I am not sure what vehicle the 3 module assembly came out of but I am looking to replace the 2 module assembly (APIM / Screen ) of a 2013 Explorer.

Any help is greatly appreciated.