An unlimited hotspot on your mobile plan is about half that. I am just curious if the OEM Mopar hotspot works with third party head units like insane audio.If you're willing to prepay and Sprint works in your area, you can get an unlimited data mobile hotspot for $500/year. Steep for some, but as someone who has lived in hotels and worked in coffee shops for months on end, it can be a lifesaver.
The Calyx Institute is a non-profit that uses an old contract that Mobile Citizen has with Sprint allowing educational and non-profit unlimited hotspots. You donate money, and for your donation, you get unlimited data through MC's contract.