I didn't structure that sentence very well. I meant that I saw in the Samsung manual that the AUX button is the toggle input, and that the advanced code for that is 00121.
In any case, I got the advanced code (also called EFC) from
this upgrade file. It's not exactly the model you have, but probably close enough for most functions. You need a program called Remotemaster to read it, so I'm just listing the functions below.
vol up = 00155
vol down = 00027
mute = 00025
tuning up = 00219
tuning down = 00091
power = 00185
return/exit = 00244
menu/DVD setup = 00150
up arrow = 00056
down arrow = 00120
left arrow = 00216
right arrow = 00248
select = 00184
play/pause = 00187
rewind = 00132
fast fwd = 00136
stop = 00059
info = 00214
dvd = 00249
tuner = 00057
aux = 00121
disk skip = 00085
ch+/FF/next track = 00123
ch-/REW/prev track = 00251
sleep = 00217
menu = 00118
eject = 00149
Language = 00246
Dolby mode/Prologic = 00180
Remain = 00053
Speaker test = 00020
Dolby effect = 00052