i removed my engine harness and underdash harness off my running car and noticed that on the big plug from the underdash harness that connects to engine harrness (8 pin plug) h as been tampered with on the dash harness side i have a 10 wire plug that connects perfectly to my engine harness 8 wire plug...

on the 10 wire side there are 2 big blk/red && yellow/black

on the engine harness side there is only 1 big black/yellow wire and a skinny black/yellow and colors dont match the other side any one can help me with this? here are some pics