You only need this unit. This unit is not NAV. You can look up part numbers here… SYNC 3 APIM Hardware Database - CyanLabs
The unit can be virtually out of any Ford or Lincoln model. However, you will want a late-J or K series unit. The part numbers will start with J or K. (Or 3 or 4 for the Lincoln versions.) This will help identifying the APIM’s… APIM Firmware Production Releases - Ford / Information - CyanLabs Official Community
Note: You are looking for a 14G371 number, this is the actual APIM. The 370 number is an assembly number for an installation in a vehicle. Manufacturer date should be 2018 or 2019.