Maddmixer,
I am not familiar with the MX-950,but if you have the Aurora MX-950 remote Software read this,
[Link: remotecentral.com]On the bottom of the page read "Importing codes".
If you download any Hex Codes,just make sure they are CCF files (original Pronto).
The remote should not need to match specifically.Codes are based on Devices,so if you have a Yamaha CDC-585 CD changer just download this.
[Link: remotecentral.com]OR
[Link: remotecentral.com]You should be able to Import these CCF files to Aurora MX-950 remote Software.
Found this to,
[Link: remotecentral.com]You should be able to Import these to.
Hope this helps!