If CD/0124 gives you some functionality, I would suggest searching through the advanced codes manually to see if there are other functions that can be created using advanced codes.
If you find some, but not all, of the missing buttons, you might want to try RCVR/0121 next, and then Misc Audio/0404, as these have very similar signals to RCVR/0124
If you need instructions on how to find advanced codes, check out the advanced code section of my web site. I would recommend using the "Compliment" version of the worksheet for Aiwa device codes.
Rob.
http://www.hifi-remote.com