Hello all, a quick scan of the forums didn't bring up this particular topic. I have the Pioneer Avic-D1 installed in my '05 Silverado. While I have read quite a bit on the IPOD interface with this unit I have not found anything about the poossibility of other manufacturer MP3 players and connectivity. Anyone know if there are other mp3 players out there that can be hooked up to this head unit and have the touch panel interface the same way the IPOD can be? I wouldn't mind getting the IPOD but they are too expensive. Any info on this topic would be appreciated.