[yNexus]

nгo й necessбrio a utilizaзгo de LOOP nesses comandos .

PHP Code:

#include <a_samp>
new NaoFloda[MAX_PLAYERS];
public OnPlayerCommandText(playerid, cmdtext[])
{
    if(!strcmp(cmdtext, "/ligarsom", true))
    {
        new Float:X, Float:Y, Float:Z, Float:Distance = 30.0;
        if(NaoFloda[playerid] == 0)
        {
            GetPlayerPos(playerid, X, Y, Z);
            if(IsPlayerInRangeOfPoint(playerid, 30.0, X, Y, Z))
            {
                NaoFloda[playerid] = 1;
                PlayAudioStreamForPlayer(playerid, "http://dl.dropboxusercontent.com/s/wkq9pvf6dsgraz4/MC_Marcelly_Bigode_Grosso__CLIPE_OFICIAL__TOM_PRODU_ES_2013.mp3", X, Y, Z, Distance, 1);
            }
        }
        return true;
    }
    
    if(!strcmp(cmdtext, "/desligarsom", true))
    {
        new Float:X, Float:Y, Float:Z;
        GetPlayerPos(playerid, X, Y, Z);
        if(IsPlayerInRangeOfPoint(playerid, 30.0, X, Y, Z))
        {
            NaoFloda[playerid] = 0;
            StopAudioStreamForPlayer(playerid);
        }
          return true;
    }
    return false;
}
public OnPlayerStateChange(playerid, newstate, oldstate)
{
    if(oldstate == PLAYER_STATE_DRIVER || oldstate == PLAYER_STATE_PASSENGER)
    {
        NaoFloda[playerid] = 0;
        StopAudioStreamForPlayer(playerid);
    }
    return 1;
} 


@Edit

Tem um sistema de rбdio em Textdraw que й de um Player aqui do Forum de uma olhada

Aqui