Well. This happens to be my profession and I can say that this could be very mind bogglin' and very rough task.
I'd say go to a decent workshop.
If you *really* want to be so masochistic to try this yourself... you can probably find wire info on
http://www.the12volt.com and other places on ze internetz.
But I do warn you, this might take you few days if you aren't used to work with car electrics...
http://www.the12volt.com/installbay/forum_posts.asp~TID~104270
WIRE COLOR POLARITY LOCATION
Battery WHITE/BLUE (+) IGNITION SWITCH HARNESS
Ignition 1 BLACK/RED (+) IGNITION SWITCH HARNESS
Ignition 2 BLUE/YELLOW (+) IGNITION SWITCH HARNESS
Accessory 1 WHITE/GREEN (+) IGNITION SWITCH HARNESS
Starter 1 GREEN/BLACK (+) IGNITION SWITCH HARNESS
Anti-Theft Type UNIVERSAL IMMOBILIZER
Anti-Theft Descript THE KEY SENDS AN RF SIGNAL TO THE BCM MODULE THROUGH AN ANTENNA LOCATED AROUND THE IGNITION CYLINDER
Key Sense GREEN/YELLOW (-) IGNTION SWITCH HARNESS
Tachometer BLACK/WHITE (-) AT ECM MODULE BEHIND GLOVEBOX
ALSO IN THE DATA LINK CONNECTOR UNDER DRIVER DASH ON SOME MODELS
Speed Sense VIOLET/RED (AC) AT ECM MODULE BEHIND GLOVEBOX
Parking Lights GREEN (+) TOP LEFT PLUG AT FUSE BOS OR DRIVERS DOOR SILL HARNESS
Brake Lights GREEN/YELLOW (+) AT SWITCH ABOVE PEDAL OR DRIVERS DOOR SILL HARNESS
Horn GREEN/RED (-) IN HARNESS AT STEERING COLUMN
Power Unlock GREEN (-) IN DRIVERS DOOR HARNESS
DOUBLE PULSE TO UNLOCK ALL DOORS
Power Lock BLUE (-) IN DRIVERS DOOR HARNESS
bypass needed for anti-theft xk05 with proper firmware.
Taken from the12volt.com
Good luck!