How to program a remote to control my Surroundbar 3000

I had a sheet with instructions on how to program a remote to control the volume on my Surroundbar 3000. Now I can not find the instructions, of course. Nor can I find my instruction manual.

I can not find an area for manuals. Any idea where I can get the instructions on how to do this?

Not that you're interested but I had my satellite receiver remote programmed to do this. We, like so many, are "cutting the cord" and going to streaming. So I no longer have the satellite and need to program a different remote.

Thanks to anyone that can help.

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