Yeah, that's the right idea.

First, Jon has to probe the interface lines to verify that they really are just resistances rather than active volatages/currents.

Then hook them up correctly, and use the Hijack Menu feature for Button Code Display and see if they generate resistances within the acceptable range of the empeg tuner hardware -- eg. each button gives a significantly different value on the display.

If yes, write down the numbers and create a big ir_translate entry with them in the config.ini file.

If no, then some hardware hackery is required.

Cheers