Holy shit it actually works all I needed to put the line you typed and it finally saved.
Thank you so much!!!!

So I installed the Pagani Zonda M297 AMG V12 Engine sound mod,and I want to put this sound mod into bullet in vehicles.meta.
But here comes the problem,when I add the m297zonda in vehicles.meta under bullet audionamehash and try to save the meta it says xml parsing error and I can't save it.
I tryed to contact the mod creator on discord and on gta5-mods.com but he offline.
What to do?