Hello, Does anyone have an idea how to connect the wiring to the back of a 5080CTL2 touch screen? Current wires from wall are blue + orange (joined together)which is positive and orange white + blue white (joined together )which is negative. Currently at the back of clipsal 5080CTL2 connectors show as - + - +. So would the wires coming out of the wall need to be separated so each corresponding wire plugs into to their respective + or - or do I connect to 1 set of + and -(does it matter which side, left or right) and leave the other + and - empty ?