Look original folder name of original software, original application name in that folder, rename new package/exe according to that info.
Btw, what is exact Toyota unit model? Name, version... And what software is originally in it?
Upload software package and give link. Of course, without large files / content (map, poi, dem...are not needed at all).
Toyota 86120-YZA97 mean nothing to me. Look in device settings, about... car model/year...
Even info on some extra sticker on unit itself can be useful.
And check, in unit should be options:
Bookmarks