I had the same issue as of yesterday (and many random days before that) with good cables and this fixed it. Don’t downplay a proven working solution for those who have good cables. Consider sending a few more questions my way to ensure that this is the same problem for the sake of constructiveness.
I fixed the problem by power cycling the Uconnect Radio Unit. To power cycle the radio unit, all you have to do is take out the radio unit’s fuse and put it back in.
Details
- Open up the hood
- Find the fuse box shown below
- Pull out the white fuse-puller-outer right above 25B in the picture...