I’ve got a ’06 Jetta V TDI, Pkg. 1 with Premium Sound XM radio (XM never activated).
With all the radio settings at nominal (i.e., bass, treble, fader, balance, etc.), and volume moderate (say, 30 % or so).
Ok, here’s the deal:
Turn the radio on to any solid FM signal preset (e.g., #1); now I...