USB 3G Cellular on Android based car stereo

  • Thread starter Thread starter AC Question
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A

AC Question

I installed an Android-based (4.4.4) audio system into my car last week and they advertised the ability to install a USB 3G modem into the USB slots. (the unit has two USB Type A connections)

Unfortunately the USB that they sell uses the T-Mobile (and rest of world) UMTS 3G frequencies and I have ATT service that has its own.

I'm looking for a USB 3G dongle that has support in Android. I tried an old Sierra Wireless C885 that I had lying around but that doesn't work.

Suggestions?