[burntoutrubber]

Do you have a convertible?

I am going to guess:
1. broken fakra terminal for antenna
2. GPS antenna connector - convertible has a GPS antenna in the dash right above the cluster. If you remove the cluster (easy) you can reach in and find it attached there.

Not sure either is right, but guesses

 

[burntoutrubber]

I have the nav and a gpa antenna above the cluster. Maybe just left that wire in the harness for all verts regardless of options?