Sirius Sportster Replay
I just received and activated my Sirius Sportster Replay this weekend. I also ordered the PAC Audio unit thinking the FM modulator would be just as bad as my tv kit and Belkin FM TuneBase for iPod Mini. I couldn't be more wrong! The FM modulator in the Sportster Replay is far stronger and louder than either of the other devices. When I mute the Replay, my stereo is DEAD SILENT, even on 30. I normally hear bleed-through when using the tv kit, and that FM modulator is physically wired in between the roof antenna and the radio!!
20 hours later, I am very happy, very pleased with the performance and sound of the Replay. Thank goodness for the remote, because you can all imagine how far out of reach the radio is when suction-cupped to the bottom of the windshield

Thanks to the 12v DC power supply I have from my ham radio days, I'm also able to bring the whole car-mount assembly in the house (at least until I get the boombox for xmas). That lets me spend hours getting used to the functionality of the unit in the comfort of my living room instead of having to sit in the car and play.
Now that I know I definitely do not need the PAC Audio adapter for the Replay, I'm hoping that I can use the two channels to improve the sound from the iPod (future carputer) and tv kit.
So I'm still anxiously waiting to hear if the bleed-through or crossover problem has been resolved for the PACs. With the performance of the Replay, I wish *it* had a Line In jack for my iPod!
EDIT: I shouldn't say I
normally hear dropouts with the tv kit vs the TuneBase FM, but the iPod running thru the tv kit still isn't loud enough, and when I turn the volume all the way up, there is a definite radio hiss in there.. not with the Replay.. if black has a sound, that's the Replay's sound when muted even over the built-in FM modulator (and not using the included extension wire).