Jedmyster,
Do not use POI files for Garmin. You should use Navigon Poiwarner asc or Navigon.csv files and simply rename them to asc.
Download them here: Navigon POI.
All registered users can download Navigon ASC files with no need to rename or convert them.
Just click on the Navigon POI button and it'll save all POI files with correct ASC file extension for Navigon/POI-Warner users.
Cheers