Hi there, my neighbour just cut the wires off of his trailer in hopes of putting a new ends. Didn't mark anything, now he doesn't know what is what? He came to ask me for help, but I only have worked with four wires.(yellow,green brown,white) Very simple. His trailer has, blue,thick white,red,small white,thick black and brown. The trailer shops say they r to busy for him to help. Can anyone help a brother out? Thanks.