Since the GPS had nothing best that I could do with, I abandoned it. Some EXE I tried works and some other do not work.
From that experience, it indeed run actual Windows CE apps I found. Since this is Windows CE, I would like to try to find some random softwares for it. But what version? Why this post here? how do you know this is version 6.0? Well, I have the intel for it later but some intel that I will reference might be illegal, but pls don't ban me! Which marks that this GPS runs Windows CE. And as it turns out, sometimes this GPS shows error window with tiny little OK button next to close button on top left title bar. Which means it could be some sort of Windows. I had fiddled around its menus and found out that the navigation app had. and heck, such device for the sole purpose of navigation is no longer relevant because of that easiness and powerfulness on the smartphone these days. Of course, this is not as powerful as of modern GPS you had on your smartphone everyday that I won't mention its brand. The car had came with GPS attatched to its mount, mounted on front glass. This GPS was acquired as a bonus when my mom got her own personal company car. This is Knav KN-502WH, the GPS that does. I have recently found this ancient GPS during house tidy up.