
drop the .ytd and .ydr files into the bt1_04.rpf using openiv in edit mode.

found here

\Grand Theft Auto V\mods\x64l.rpf\levels\gta5\_citye\sunset\bt1_04.rpf\

if you do not have x64l.rpf in your mod folder copy it to you mods folder then follow the first step to the path specified.

or you can use the addon in the addon folder. readme in the addon folder