I was just on Year One's website and they now offer a reproduction AM/FM stereo for E-bodies, that has jacks for an Ipod and CD player. The part number is AMF49. It's not cheap at $595, but at least its available. Below is a description from their website.
"These radios are an exact reproduction of the originals but equipped with the latest technology internally. Fits in dash with no modifications. 4 x 45 watts RMS output allows up to 180 watts of power. Digitally tuned AM/FM/Stereo front end provides stable, high quality reception. The AM/FM dial scale looks like the original and the slide bar functions like the original. The LED lights in the radio never need replacing. 7/16" diameter shafts for mounting exactly match the originals. Memory retention for pushbuttons and user settings. RCA jacks provided for MP3, CD player or satellite radio connection."