I don't want to make another thread for a problem that is similar so I will use this one, someone recently made a siren for gta 4 (its a signaflex siren) and I extracted the .wav files that I want from the .Ivaud but now when I try to upload the new vehicle file in openIV it says that it cannot proceed, there is an error, my question is did anybody else try to convert siren from gta 4 to 5 did it work?