So a friend and I have been playing a British FiveM server and he just got a better sounding siren so sent me the link, I have installed it exactly as he has but I still get the default siren in game. The mod pack comes with one .awc file and he just told me to copy and paste it to the RESIDENT.rpf file in OpenIV, the read me says to do the same but this was to no avail.
Any help would be appreciated.