I was thinking the issue would more likely be with the video, rather than the power, but now I realize it is the other way around.

You answer was fine, as it clarified what I would need to know.

My console doesn't have an HDMI port, so I need to make sure the cables are simple AV cables.

I have the power rating listed on the console. I know the system is older since it lacks the HDMI port, so based on your response, I'm guessing the power supply isn't going to work.

But I'll give them the information and see what happens.

Thanks for your help, Leo_A!