Can i add custom music to gta online?

According to the Wikipedia entry for Grand Theft Auto Online, the game is an online multiplayer action‑adventure set in the fictional state of San Andreas. The article describes the game’s open‑world design and multiplayer features but does not mention any functionality that allows players to add or play custom music files. In practice, the game uses a predefined set of in‑game radio stations and audio tracks that are built into the title. There is no documented support for user‑generated audio content or custom music playlists within the official game client. Therefore, based on the available evidence, players cannot add custom music to GTA Online.