Already had this & chrome x mods released it whiles ago becouse people where trying to actualy sell this...
U need a jtag/rgh console yes, and u need to set the modded .xex file as a plug-in in dashlaunch then reboot and load gta 5 default.xex if u have the other basic stuff ex: tu's...etc, it should work fine
I hope someone updates those since the new tu and dlc is out. I'm not updating until it is. I live those mod menu!