Y0U NEED "OpenIV" T0 REPLACE THE INTR0. Download it here: https://www.openiv.com/

How to replace the Intro:
1. Start 0pen IV
2. Go to Grand Theft Auto V -> update -> update.rpf -> x64 -> movies
3. Enable edit mode
4. Replace "rockstar_logos.bik" (right click on it -> replace)

NOTE: Backup is already included

Including:
No Intro
GTA
GTA 2
GTA 3
GTA Vice City
GTA San Andreas
GTA V Backup
NVIDIA + Alienware Logo
Valve Intro