I just checked and the unit has been updated. It's Ver. 1.001700.
The install manual says to have the antenna as level as possible. When I say it's at an angle, I mean the antenna is on the back of my car, which is about a 25 degree angle sloping downward.
The installers are the most reputable in the area. When I was selling cars at the local Ford dealership, we sent them all our cars if sattelite radio, etc needed to be added.
All I can guess, like you've been saying, is that there's something wrong with the wire itself. Either pinched, damaged, or a loose connection. The rest of