Additional license plates from GTA universe places, that isn't San Andreas.
They're optional and could be add a bit more diversity in your game. 

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Installation:

1) Go to vehshare.ytd:

GTA V\mods\update\x64\dlcpacks\patchdayg9ecng\dlc.rpf\x64\levels\gta5\vehicles.rpf\vehshare.ytd

And add needed plates + normal map texture. 
All plates use same "plate06_n" normal map texture. Without it they just wouldn't work correctly.

2) Go to carcols.ymt:

GTA V\mods\update\update.rpf\x64\data\carcols.ymt

And put text bellow before </Textures> line:

      <Item>
        <TextureSetName>Liberty Plate</TextureSetName>
        <DiffuseMapName>plateLI</DiffuseMapName>
        <NormalMapName>plate06_n</NormalMapName>
        <FontExtents x="0.08000000" y="0.29200000" z="0.92000000" w="0.74300000"/>
        <MaxLettersOnPlate x="7.00000000" y="1.00000000"/>
        <FontColor value="0xFF002473"/>
        <FontOutlineColor value="0x00FFFFFF"/>
        <IsFontOutlineEnabled value="false"/>
        <FontOutlineMinMaxDepth x="0.47500000" y="0.50000000"/>
      </Item>
      <Item>
        <TextureSetName>Robada Plate</TextureSetName>
        <DiffuseMapName>plateRB</DiffuseMapName>
        <NormalMapName>plate06_n</NormalMapName>
        <FontExtents x="0.08000000" y="0.31000000" z="0.92000000" w="0.79000000"/>
        <MaxLettersOnPlate x="7.00000000" y="1.00000000"/>
        <FontColor value="0xFF000000"/>
        <FontOutlineColor value="0x00FFFFFF"/>
        <IsFontOutlineEnabled value="false"/>
        <FontOutlineMinMaxDepth x="0.47500000" y="0.50000000"/>
      </Item>
      <Item>
        <TextureSetName>North Yankton Modern Plate</TextureSetName>
        <DiffuseMapName>plateNY</DiffuseMapName>
        <NormalMapName>plate06_n</NormalMapName>
        <FontExtents x="0.08000000" y="0.24500000" z="0.92000000" w="0.70600000"/>
        <MaxLettersOnPlate x="7.00000000" y="1.00000000"/>
        <FontColor value="0xFF000000"/>
        <FontOutlineColor value="0xFF2BFF05"/>
        <IsFontOutlineEnabled value="false"/>
        <FontOutlineMinMaxDepth x="0.47500000" y="0.50000000"/>
      </Item>
      <Item>
        <TextureSetName>Carcer Plate</TextureSetName>
        <DiffuseMapName>plateCC</DiffuseMapName>
        <NormalMapName>plate06_n</NormalMapName>
        <FontExtents x="0.08000000" y="0.27500000" z="0.92000000" w="0.74500000"/>
        <MaxLettersOnPlate x="7.00000000" y="1.00000000"/>
        <FontColor value="0xFF31658C"/>
        <FontOutlineColor value="0x00FFFFFF"/>
        <IsFontOutlineEnabled value="false"/>
        <FontOutlineMinMaxDepth x="0.47500000" y="0.50000000"/>
      </Item>
      <Item>
        <TextureSetName>Capital City Plate</TextureSetName>
        <DiffuseMapName>plateCap</DiffuseMapName>
        <NormalMapName>plate06_n</NormalMapName>
        <FontExtents x="0.08000000" y="0.27000000" z="0.92000000" w="0.74000000"/>
        <MaxLettersOnPlate x="7.00000000" y="1.00000000"/>
        <FontColor value="0xFF002D7B"/>
        <FontOutlineColor value="0x00FFFFFF"/>
        <IsFontOutlineEnabled value="false"/>
        <FontOutlineMinMaxDepth x="0.47500000" y="0.50000000"/>
      </Item>

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Adding plates to the traffic:

If you want to see fresh added license plates - just add manually each plate in the carvariations.ymt file (before </Probabilities> line): 

Vanilla game vehicles - GTA V\mods\update\update.rpf\x64\data\carvariations
Next-Gen pre-installed vehicles - GTA V\mods\x64w\dlcpacks\*DLC name*\dlc.rpf\common\data\carvariations
DLC vehicles/Modded vehicles - GTA V\mods\update\x64\dlcpacks\*DLC name*\dlc.rpf\common\data\carvariations

Use example bellow:

          <Item>
            <Name>Liberty Plate</Name>
            <Value value="0"/>
          </Item>
          <Item>
            <Name>Robada Plate</Name>
            <Value value="0"/>
          </Item>
          <Item>
            <Name>North Yankton Modern Plate</Name>
            <Value value="0"/>
          </Item>
          <Item>
            <Name>Carcer Plate</Name>
            <Value value="0"/>
          </Item>
          <Item>
            <Name>Capital City Plate</Name>
            <Value value="0"/>
          </Item>