Determine if the APIM is NAV equipped and has the appropriate storage for maps. Follow this tutorial:
Tutorial: APIM Interrogator Utility - Ford / Guides & Info - CyanLabs Official Community
You will need 64GB APIM for full EU maps install. If you have a US version with 32GB, you can install a cut down version of the map install.
Tutorial: EU Maps to US Car (3.4 Sync, F9 Maps) - Ford / Guides & Info - CyanLabs Official Community
Or you can have CyanLab provide a cut down installation for you.
If you have a NON-NAV APIM with 8 - 16GB of storage, you cannot install maps.