I searched for WEEKS to find one for my 2005 Honda Accord EX 6-Speed and I was able to find the only one that worked at
www.mp3yourcar.com. If you have XM, you will have to unplug it (as it uses your auxillery stereo port). I believe the product is called the Neo ION SP. It interfaces directly with your stereo, allows you to change MP3 tracks on your steering wheel controls or radio controls or iPod interface. (This was a big deal to me because I had 40gb of music and the only efficient way to browse it was through the iPod interface).