Install to "GTA V/Mods/update/x64/dlcpacks/mpchristmas2/dlc.rpf/common/data" IF USING POLICE3 SLOT.

or Copy the text below & add it to that carvariations.meta

If using any other slot besides police3 change "police3" to that slot.

<Item>
  <modelName>police3</modelName>
  <colors>
    <Item>
      <indices content="char_array">
        134
        134
        156
        156
      </indices>
      <liveries>
        <Item value="true" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
      </liveries>
    </Item>
    <Item>
      <indices content="char_array">
        134
        134
        156
        156
      </indices>
      <liveries>
        <Item value="false" />
        <Item value="true" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
      </liveries>
    </Item>
    <Item>
      <indices content="char_array">
        134
        134
        156
        156
      </indices>
      <liveries>
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="true" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
      </liveries>
    </Item>
    <Item>
      <indices content="char_array">
        134
        134
        156
        156
      </indices>
      <liveries>
        <Item value="false" />
        <Item value="false" />
        <Item value="true" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
      </liveries>
    </Item>
    <Item>
      <indices content="char_array">
        134
        134
        156
        156
      </indices>
      <liveries>
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="true" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
        <Item value="false" />
      </liveries>
    </Item>
  </colors>
  <kits>
    <Item>157_massacaro2_modkit</Item>
  </kits>
  <windowsWithExposedEdges />
  <plateProbabilities>
    <Probabilities />
  </plateProbabilities>
  <lightSettings value="1" />
  <sirenSettings value="1" />
</Item>
<Item>