04 freestar r/r tail light assy.
 

HI ALL! new to this forum, my neighbor has an 04 freestar, i need to know how to remove the right rear taillight assy,to gain access to the taillight hot wire. She is disabled and has a rack for her scooter. She needs a liscence plate light which is already bilt onto the scooter carrier, So all I need to do is to gain access to the taillight hot lead not stop light. Could someone tell me the color of that wire?There are two phillip head screws on top of the lens assembly. I removed the two screws and it seems if i pry it it would come off. Not sure Thanks for your help in advance
Tony