Wayne.B wrote:
I have a set of grungy looking yellow 50 amp cables that I'd like to
clean up.

Does anyone know of a good cleaning product and/or technique short of
going out and buying new ones?

Try Oxi-Clean. We use it on a lot of stuff around the boat and had no
trouble with any kind of plastic. Don't get it on varnish or natural
wood, though.

Fair Skies
Doug King