Basically:

back/front - 0x3a
middle - 0xaf
front/back - 0x9a
att - 0x2a
back track - 0x5a
forward track - 0x48
source - 0x16
vol back - 0x84 (preset back has shift on - the byte before the adc value)
vol forward - 0x6e (preset forward has shift on)

There is a range of something like +-2 on v1.03 and +-6 or 8 on v1.04 as I remember. The back/forward stuff gets swapped depending if the stalk is left/right mounted.

Hugo