This mod give Public Service vehicles radios! So for example, listen to Radioactive on Independence FM, have the sirens on, and spray the heck out of someone!

Installation:

Put Vehicles.ide in Grand Theft Auto IV/common/data

Important:

BACKUP YOUR VEHICLES.IDE!!!

Some Bugs:

Name changes are so the game is tricked into giving the vehicles radio and some other features like Reverse beeps

-Firetruck/Ambulance/Enforcer/Police Patriot are named Trashmaster (From editing within the Vehicles.ide files.) (Also to give it a reverse beep.)
-Police Cars & FBI Cars are named TAXI
-Predator (Police Boat) is named JETMAX
-Police Maverick (Police Helicopter) is named MAVERICK

That's all!