Installation: 

1:Copy update folder to 
:\Grand Theft Auto V\update\x64\dlcpacks\ 

2:Use OpenIV extract 
:\Grand Theft Auto V\update\update.rpf\common\data\dlclist.xml
then use notepad open it,add new line 
<Item>dlcpacks:\2004rx330\</Item>
Save it and use OpenIV replace it.