Hi Fragmentalist!
i just got it working.
there is an internal routing of the t.s. destinations which is useless
if you want to record them as events.
go to the screen where you can configure the destination of X,Y and A.
then turn the amount to

ff.
in the same window you have to type in the right midicontrol no. of the knob that you want to be the dest.. so if you for example want to control the cutoff with the x-amount enter 19.
to get to know the midi numbers of other knobs you can look in the manual or put the mpc in stepedit mode and press overdub (playback NOT running).
now turn a knob and you´ll see the midinumber with the changing value from 0 to 127 in the step edit list. in that list you can see every event coming from the voyager. thats good to check that u have assigned everything the right way. make sure that the gate function of the pad has no number assigned or if you only want to use x and y and not A that the midicc no. of A is set to off.
hope it works!