If I don't have the advanced codes listed on my site, the quickest and easiest way to get them is to call the Radio Shack hot line on 800-763-9232 (say that you have a 15-1994 remote, when they ask), and have them email the codes to you. When you get them, please forward them to me and I'll add them to my site.
Rob
http://www.hifi-remote.com