Hi,
I had a Cinemate 120 system and would like to upgrade to soundtouch function.
Should I just buy a soundtouch adapter as below? Or anything else?

Secondly, Which kind of ADAPTiQ should I use for calibrating my 120? R-L audio? or 3.5 mm connection?
If I only have R-L audio one as below picture, can I use R-L audio to 3.5mm adapter then use it on my 120?
Could anyone provide me the correct part number for the ADAPTiQ?
Thank you.