You have a bad/dead aircard in the radio. It provides the 4G cellular network connection to your UConnect radio, but the GPS antenna has to pipe coordinates through it to make the navigation work. The aircard is a required hardware "bridge" to make that happen, even if you aren't using any connected services.Anyone else ever run into this or know how to fix?
A failed aircard will cause the GPS issues. I’m not aware of it causing an amp draw or continual reboots. Sounds to me like the radio itself is the issue.Could this all be because of a failed aircard?