yeah i hav some experience with it. let me find the hex
for you it will be simple....

FF,03,00,01,37,3B,FF hex .5db volume up
FF,03,00,01,38,3C,FF hex .5db volume down

FF,03,00,01,5A,5E,FF hex 1db volume up
FF,03,00,01,5B,5F,FF hex 1db volume down

that should work...just put it into theater touch as an
rs232 it will convert it.

thats what i have for a customer with a suite 7.1 and
a t3 id send the file but i dont have it...... i did not
back it up and lost it... oh w2ell i woill be at customers
in a week or 2

good luck

ed