Installation: 
Open OpenIV or SparkIV. (Your choice)
Open GTA IV up in the program.
Navigate to "pc" then "models" then "cdimages" and lastly "vehicles.img"
Scroll down until you find "police2.wtd"
Open "police2.wtd" and drag "police_livery.png" onto it.
Press "Ok"
Press "Save" and back out to the previous screen.
Scroll down until you find "vehshare.wtd" and open it up.
Do the same here as you did with the previous one, except you do it with "vehicle_generic_police_livery.png" now.


THIS ONE IS IMPORTANT!: RATE MAX STARS :D



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