96 volvo 850 aftermarket radio wiring. need help ASAP!!

the previous owner did one hell of a hack job on the wiring for the cd player, I just got a aftermarket unit and I need to know the following

Drivers front speaker wire color =
Passenger front speaker wire color =
Drivers rear speaker wire color =
Passenger rear speaker wire color =

I want to solder and heat shrink the harness into the car since there is no factory connectors.

any info, recommendations to other website articles would be greatly appreciated.

I would like to have the player working before 2am est time tonight the sooner the better!

Cheers,
Delfosse

Give this a shot.

http://www.the12volt.com/installbay/stereodetail/2230.html

I found this site when I put a radio in my '88 4Runner... was at least accurate enough for me