I am trying to wire my snowplow for my 99 F-150 and I need to figure out what is High Beam, Low Beam and Ground on my headlight plug. I would have figured this out if the wire colors were standard but it looks like someone installed new plugs, so the wire colors won't help me, not to mention that my fluke multimeter decided to stop working. If any one could check this for me it would be greatly apprecited. Below is what I think they might be, if someone could back me up that would be great!

 

The ground wire is the center, high and low on either side but I'm not sure of order.