OK, somewhere on here I saw a post about someone trying an aftermarket SIM. They had ordered it but not yet tried it. But I can't find that post. I guess I can't navigate the search function on the forum.

I remember the SIM was only a couple bucks, data only.

 

Yes. Freedompop. Apparently someone got their free data plan to work on the incontrol system
I bought one and have it ready but my factory one still works fine beyond the 3 month trial so I'm not messing with it for now!
Search around and you'll find the original poster somewhere on here

 

Thanks much