Akosjun

@TheNathanNS I found the problem. I accidentally deleted VehicleAudioLoader.asi, because I thought that it is part of another mod I wanted to delete.
10/10! One of the best mods for GTA San Andreas!

@TheNathanNS Yes. It only happens to the GTA V cars after I tried the Bürgerfahrzeug Bifta. And the lines of the added cars are in it.

I tried BF Bifta, and now, all cars don't have sound (either engine and radio). Why is this?

@Marty McFly Thanks, it worked!!! By the way, I tried this, too, and the Z, and now all of them are awesome!!! 10/10!

@Akosjun Sorry, it's for your 4.0. I accidentally posted here...