The Azur 351R uses the NEC IR protocol device 192.  The URC7960 is capable of sending this IR protocol using the STB device setup code 1611.  If you prefer to use some other device button than STB, you'll need to follow the procedure in the 7960 extra features manual for changing a device mode to make e.g. the MP3 button act as a STB type button.  Then assign setup code 1611 to the e.g. MP3 button.  Make sure that the remote blinks twice which indicates that 1611 was accepted.  The 5 digit EFCs are:
FM TUNER    00055
BD/DVD    00053
CD/VIDEO1    00054
VIDEO2    00056
AUX/TV    00052
STANDYBY/ON    00181
MUTE ON/OFF    00183
UP    00248
DOWN    00230
STEREO MODES    00186
SUROUND MODES    00164
LIPSYNC    00101
DISPLAY    00247
TUNER-STEREO/MONO    00118
TUNER-STORE    00120
TUNER-MODE    00116
LEFT    00246
ENTER    00231
RIGHT    00244
OSD ON/OFF    00245
BASS/TREBLE    00105
ANALOG STEREO DIRECT    00168
AUDIO INPUT TYPE    00123

BTW, for newer OFA and other remotes made by UEI, most of these commands are sent by setup code Audio 4154.
Edited to correct the setup code to 1611.