2 wire door actuator

hi i recently purchased 2 door actuator, i only have a question which may be obvious to people, anyway to make the actuator go in and out, u must reverse the polarity on both sides, ex one side is pos and the other is neg, to make it operate the other way it must then be connected neg, pos, is there like some simple way to wire this up or am i looking at 2 relays or do they make a reverse polarity switch which is nice, wire colors are green and blue by the way

Try a standard (early 80's GM for example) power window switch. 1 + input, 1 or 2 - input(s), and 2 outputs.