Got myself some leccy mirrors for my golf a couple of weeks ago for a bargain price of £40 from an autojumble

Only prob is, they are reversed as in when its on the left it controls right and vice versa. I've come to the conclusion they must be from a left hand drive golf, as the short loom would go to the mirror the same side as the switch, in a left hand drive car this would be the left mirror.
So my question is, which connections do I swap? There are 6 wires going into switch, one is brown so is negative and one is black/yellow, so is power (I think). The others I don't know. Any help?