Installation: -Open 'OpenIV' and navigate to "Grand Theft Auto Vx64audiosfxRESIDENT.rpf" -Turn on edit mode -Select vehicles.awc, open the context menu with the right mouse button - export to openformats(.oac) (export to any convenient folder) -From the vehicles folder of the downloaded archive, copy the files to the exported folder (that we just created) -Next go to create menu in 'OpenIV', import openformats and add 'vehicles.oac' (from created folder) -Close 'OpenIV' -Ready.