Still using an old set of Sony SA-VA3 speakers (Sony remote is RM-VA3) with one of my TVs. Would like to be able to control them with a newer Mitsubishi remote. Can't seem to find any codes that work. I have tried all of the Sony codes, for any type of audio device with all my other remotes and none of them work.

No comments about the old setup, please. The speakers work just fine and have been great for 15+ years now.

Just want to be able to put the speaker remote in a drawer. ;-)