This is an LCD type projection set, so your problem COULD be a bad light filter on one of the LCD's in the light engine, or something is on one of the mirrors inside the set. Replacing or serviceing the light engine inside these sets should only be attempted by a trained service tech, because of the equipment thats needed to do this repair. good Luck PS please dont forget to rate this thread.
Basically the wiring of the large harness corresponds to the pins like this.
Starting in the upper right hand corner and working down the right side from A12 down to A1.
1=Left rear output-red
2=Left rear output-blue
3=Right rear output-black
4=Right rear output-yellow
6=Left front input-black
7=Left front input-yellow
8=Left rear input-orange
9=Left rear input-green
Back up to upper left hand corner on the large plug
13=Right front tweeter output-red
14=Right front tweeter output-blue
15=Left front tweet output-red
16=Left front tweeter output-blue
18=Right front input-red
19=Right front input-white
20=Right rear input-blue
21=Right rear input-red
23=Right front sub (+) output-yellow
24=Right front sub (-) output-black
The small harness is the same above with the upper right position being pin 1 going down to pin 4 then back up to the top for pin 5 down to pin 8.
1=Memory Power-Lrg White
2=Amp Ground- Lrg Black
3=Left front sub (+)output-yellow
4=Left front sub (-) output-black
5=Left front mid (+) output-white
6=Left front mid (-) output-brown
7=Right front mid (-)output-brown
8=Right front mid (+) output-white
Hope this will help you.
Usually answered in minutes!