I was able to get AC Gauges for my GTS. I got the overlay with a cable, a black box with 4 cables and the little white thing to change the color and the brightness. I know that one of the cables from the box goes to the power, another one must go to the overlay, 1) what do i do with the other 2 cables left? also 2) where do i install that box? I read the info on Isaac's install guide but it doesn't mention anything about the black box and how to connect the cables. Each cable has different colors, 3) how do I connect them. Please advise...thanks.
This is the overlay I'm talking about