Another update. With more research in the forum I found how to record codes from the original remote with the Flirc USB. I followed to process with the power button, vol up/down, and mute. All volume controls work, but the power button still isn't. I'm stumped, any ideas?
EDIT: So I went to call it a night, and the remote turned off the receiver but could not turn it on. Then I recorded other codes while turning on the receiver with the original remote, but none of the different codes worked. Still stumped but at least I'm closer lol.