Not sure I understand what you mean- "don't want to back feed into the radio"... Obviously the best case is having an internal, hard wired AUX input, but I have no problem with the audio quality having the setup I described above. I was also looking at getting a new stereo, but would have spent more on it than the aftermarket kit, and I now have the connector fed to the center console, rather than dangling off the face of the head. Comes with both an iPod 30 pin connector and a 3.5mm stereo input jack, BTW.
Bone stock '05 WK Rocky Mountain Ed.
So long, '96 ZJ with unsolvable gremlins