Using JP1 software you can build the .wav file yourself. But that takes even more understanding of JP1 software than you need for using the JP1 cable.

Rob and I have posted just a few (VERY few) .wav files we've made. But the one you want isn't there.

OFA won't give you a .wav file for a USA model remote. They will play it for you over the phone. With old wired phones it apparently works (to load directly from the phone to the remote) with cell or wireless phones I understand it doesn't work.