How do you get the wiring harness off. Its got the red clips, just can't get it off.

Then red clips are a lock. push the red clip out of the lock to release the black tab. Press on the black tab and pull like hell because they stick often. If it still stays latched then use a pick or a small flat screwdriver to pry up the end of the tab nearest the socket. be careful not to snap the black clip end off. you will still have to pull hard to get it to release though.
RG