How do I hook up a wii to a Sanyo tv?

I'm trying to hook up a wii to an older Sanyo TV. I've plugged all the cords in....I have red, white, and yellow cords in. When i plug the yellow one into the green slot, I get a black and white, very fuzzy picture.
So far, that's the most success I've had with switching out cords and putting them in different spots. Still no sound.
And one catch....don't have a remote to the TV....I have other brands or remotes that I can use ( if someone can tell me how to set.them up).
I need to have this hooked up pretty soon so any help or ideas are GREATLY appreciated.