Ok, I dug up the schematic. This is for the Video Only. You'll have to get a copy of the Coco Schematics to find out where to tap the audio (Probably at the input to the RF Modulator, but I don' t know what you'd have to do to make it sound good)... http://img190.imageshack.us/img190/8801/23fa5940.gif (The "New Board" mentioned in the GIF means the Coco 2 logic board) Here is a link to a repository that has the service manuals: http://goyim.dyndns.org:8080/coco/Documents/Manuals/Hardware/ That's the best I can do now, as my Cocos are on a top shelf I can't reach anymore and can't pull one down to look at the installed adapter. Hope this helps. Al