Audio Systems: wire schematics, car cd player, color stripes

Question
I am trying to install a car cd player with out buying a new harness. I would like to just cut the harness out of the car and the stereo and hook them up direct. Unfortunatly I can't find a free diagram to color coordinate the wires. It's a 87' Delta 88 Royale, if you have a link or know the schematics that would be really helpful.  

Answer
I use to have an 87 delta 88!! hope you dont mind feeding it a ton of gas!!
anyway, the closest I got was this:

http://www.installdr.com/InstallDocs/GM/PDF/460053.pdf

it says it's for a 93' delta 88 so look at the wire colors listed here and see if you have the same colors and color stripes at least.  if so I would sugest using a meter to confirm they are what the chart says.

If the colors are different I can help you figure them out using a meter.  so many people ask this kindof stuff I need to just write up a guide on figureing wires out if you dont have a schematic.  so I'll try to work on that anyway.

Check out the link and let me know what you find.