This my small work i hope you will love this Ymap.
Installation
Extract the YMAP from the folder and set it on your desktop
Open OpenIV, install it if you dont have it already
[Make sure you go into edit mode!!] Click update> x64> dlcpacks> custom_maps>dlc.rpf> x64> levels> gta5> citye> maps> custom_maps.rpf
Then take the YMAP and drag & drop it into OpenIV then its in!
Credits:
Ms Mods