I've just created a WAV file that you can try out. It included all the official Bose codes, including the 3 mentioned in this thread, plus I have created an upgrade myself specifically for the LS35 called VCR/2000.

You can download the WAV file from here:
[Link: hifi-remote.com]

It's a big 2MB file, so it might take a minute or 2 to download, plus it'll take about 3 minutes total to load, so don't worry that it's looping or anything.


The official codes included are:
DVD/2023
RCVR/0238
RCVR/0639
RCVR/1229
RCVR/1355
RCVR/1356
RCVR/1357
RCVR/1629
AMP/0674

and the one I created:
VCR/2000