Would like to add CD / Radio to my Bose SoundDock

[Shoestringracer]

I have a Bose SoundDock ipod dock that is about 3 years old and I think the sound is fine and it is neat and doesn't take up much space, but my wife prefers CDs to using the iPod and also misses the radio. I can't find any auxilary inputs on the SoundDock, but the website seems to imply there is one. Are there any other options, maybe that plug into the iPod's slot? We are not looking for ultimate sound quality, but it woudl be nice if it was a similar style (gloss black) and small.

Thanks