toakenspy

Hi everyone. Here is my first post on this site. I am trying to fit front and rear parking sensors on a 2010 Ford Galaxy and the wiring is like this. RED - Ignition BLUE - Brake light wire BLACK - Earth YELLOW - Reverse light wire Can somebody tell me please what colour of wires I should connect these wires to as there's loads of coloured wires. I can't even get out the rear lights as when I remove the long plastic screw behind it, it still seems to be stuck at one of the corners, it's difficult to feel around in there. Thanks.