I bought an inexpensive headunit to use in my truck that came with Android 5.1.1. It doesn’t have anywhere to install a SIM for data, and up until now I have used my phone as a hotspot to share the WiFi with it. Now I want it to give it data full-time with an extra SIM & plan that I have. For inputs, the headunit has USB connections, a slot for a microSD card, WiFi, and bluetooth. What would be the best way to give the headunit a full-time data connection?