Last night I did some additional experimentation with FM Modulators and settings for optimum sound quality. Here is what I found, plus some general information that may be helpful:
1. If at all possible, set the SkyFi for the highest possible line-level output and turn down the gain (volume) on your modulator to compensate. This will sound much better than any other combination which achieves the same overall modulation levels.
2. Set the volume to ...

News of Specific Satellite Radio - Hardware / Service Questions