I've got them hooked up right now. SNES has the exact same connection as the N64.

That's what they look like, im not crazy 
That is the non-RGB cable I was talking.
That cable is not RGB-scart.
That cable gives shit picture (only RFcable is shitter).
True RGB scart gives way better, more vibrant and sharper image.
US phat SNES and PAL GameCube give out RGB signal natively (PAL SNES might but not sure).
Certain French PAL N64s and certain older US N64s can be easily modified to output RGB.
Which version of the RGB scart which system uses is the thing I don't know.