wirecolor to the back-up light and where it goes

Hi.
I got a 96' Chevy Astro, it's imported to Denmark in 2000, when it got to Denmark the turning signal was red and that's not allowed in Denmark, so it's been change'd so that the back-up light as now painted orange and use'd as turning signal, but I need to have back-up light and would put on 2 lamps, but I cant find any wire and I would like to know where it's goes and what color the wire is.



Best wishes Henning Not sure of the routing of the wires but Chevy has used a brown wire for park lights, yellow for left turn and a green for the right turn. The turn light wires double as the brake light wires.
The back up light wires are also green but I cant remember if they are the light or dark green.