VERSION 2.0 REQUIRES GInput INSTALLED!
With this plugin you can switch between radio station in both directions, like in San Andreas. You need to assign mouse wheel to Radio action(KEY_INCAR_RADIO) in standard controls setup, and it will work as a previous radio station and next radio station key.
Supported executables:
III/VC - 1.0, 1.1, steam(1.2);
Installation: Copy mouse_wheel_radio_changer_gta3vc.asi to the root directory or mss folder.