If you only have two jacks coming out of mini jack just try flipping the connection and see if you get a picture and sound. If you have three coming out there are only 9 combinations shouldn't take long to figure out.
BTW the color of the connectors has nothing to do with the signal. If there are two jacks coming out of it that means there are only two signals to go into it.
BTW the color of the connectors has nothing to do with the signal. If there are two jacks coming out of it that means there are only two signals to go into it.