Only bit of help I can give you is what I found on a google search and that is that the codes start at a certain number, i.e the Acoustic solutions DS533 uses the code 1501. Other systems above that, go up by 28, so the next one up should work with 1529 or 1557, 1585 and so on. I suggest you start at 1501 and work your way up. You should eventually hit a code that manages all the functions. EDIT: code for Acoustic Solutions DS633 this is 1629.