In other words, just follow the instructions up above, with the 9-9-4 and everything, but just start with 000 and work my way up to 255, searching for codes?

Wow, you'd think someone would already have posted the codes for such a popular receiver. But if that's the case, I guess I'll try.

As for the reset code, um, how exactly can I be "careful"? If I stumble on it, it erases everything -- but just for that AUD device, right? So I could just reprogram the AMP0013 into my URC 6131 and key in the codes I've discovered and written down.

Man, I sure hope I'm understanding you correctly.