Modder gennariarmando has changed the interface, menu and map in GTA San Andreas. His project, the V-Hud mod, is aimed to to recreate of the HUD elements present in GTA 5 as accurately as possible.
The main loading screen now has a quick overview of the game. The settings menu is largely similar to GTA 5.
The changes affected the user interface. The mini-map is located in the lower left corner, the full map is available in the pause menu. Of course, the weapon selection wheel is presented too. You can download the mod on the author's GitHub.