I've got a multichanger that came out of my '87 Aspy that's just laying around. Don't know if it works as I didn't have a CB when I purchased it. You can have it if you like and if it works just make an appropriate donation to the forum and we'll call it even. PM me and let me know and I'll see if I can figure out the shipping cost. You have to have a multichanger as that is what you'll plug your helmet cords into. The intercom wires from the junction box and the plugs from the CB unit itself plug into the multichanger. Tricky posted the schematic for me here: http://www.gl1200goldwings.com/download/file.php?id=899&mode=view
If you're just looking for the helmet speakers/mic and connecting cords you can find a good set of J & M's at Sierra Electronics http://www.sierra-mc.com/categories.asp?cat=9 . You can call them about your specific application if you're unsure.
See, Tricky, you can teach an old dog new tricks! Tricky helped me get my intercom going.
Thanks for the replies as for the offer of the multichanger Ithink my bike already has one cords for hook ups are there but headsets missing when I bought it will check out sierra electronics thanks Be safe out on the roads