Caputogio,

No, this is the path on internal phone storage.
I have tried many paths with my external SD storage, but no success. It is probably due to Lollipop's limited access of external card; I might be wrong.
I wish I could install SP on the external card to relieve ~ 2 GB of my precious internal storage. :-)

Hopefully, someone here could help/guide us how to install this Garmin SP on a SD card.