Hal,
I did the Activity Monitor search as you suggested. Nothing there of note.
I Control+Clicked the installer and what was revealed was not very telling, at least to me:
The Contents had 3 subordinate items:
1. distribution.dist (looks like a package but with no pkg suffix)
2. Packages. This contained:
• garmingpscontrol-1.pkg
• garmingpscontol.pkg
3. Resources. This contained what I believe to be 25 different languages (each has a Background, License, and Welcome)
Re proving a path to the package, alas, I don’t know how to do that, e.g., run lsbom, and sadly, I’m confused (but appreciative for your help).