The stock signal switch wires are:
# White - brake light switch
# Pink - left brake light
# Black - right brake light
# Yellow - flasher
# Light blue - left front signal light
# Dark blue - right front signal light
I really don't understand the question. Looks like a new harness would have the proper colored wire and long enough to reach it's destination. Terminate the light blue at the left front and the dark blue at the right front. If you have aftermarket lights it would be by coincidence only if any of these colors match the signal housings.
