I just bought a set of head light housings for my 03 cavalier, and I was wondering how hard it is to wire them in.  Thanks for any help.
 
 
we have no idea what the heck your talking about..  we need pictures and a better description on what you are talking about .
 
 
Take the red and green wires, tie them to a switched 12 volt source.  The blue just cut off.  Yellow goes ground, and the brown goes to the purple behind your radio.