I completed my install last night.

The wired FM Modulator sounds much better than any FM transmitter I've tried. That said - it's still a poor substitute for an AUX-IN. It sounds about as good as a decent local FM station, but no-where near the quality of an physical Aux input.

I tapped into the 12V plug on the front to get power for the Firewire charger (and my radar detector too, what-the-heck). Nothing I did is permamennt, I basically hard-wired a 2-plug 12V cigarette-lighter adapter behind the dash. I can plug anything in there as the years go by.

I'm hoping against hope that something like THIS will be made to work with the Rockford Fosgate so I can replace the headunit while keeping the amp, speakers and steering wheel controls.