It sounds like you're having trouble playing out-of-region games and they're all displaying in black-and-white, is that correct?
If so your cables don't have anything to do with it, and even if they did you would be hard pressed to use component cables in a non-progressive scan compatible television.
Just force video mode in your backup loader to 'your region' or 'system'. If you're not sure how to do this just dig around the settings a bit. It will be in the game load settings of whichever backup loader you're using.