Take these lines and insert them below the carcols.ymt entry for MP100 GOLD SPEC. Carcols.ymt can be found in
mods/update/update.rpf/x64/data

    <Item>
      <color value="0xFF006300"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_light</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="3089268592"/>
      <colorName>161 Apple Green</colorName>
    </Item>
    <Item>
      <color value="0xFFE86463"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_light</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="3089268592"/>
      <colorName>162 Coral Pink</colorName>
    </Item>
    <Item>
      <color value="0xFFF0F080"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_yellow</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_light</audioPrefix>
      <audioColorHash value="3440150791"/>
      <audioPrefixHash value="3089268592"/>
      <colorName>163 Piña Colada Yellow</colorName>
    </Item>
    <Item>
      <color value="0xFFC4F1FF"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_light</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="3089268592"/>
      <colorName>164 Mist Blue</colorName>
    </Item>
    <Item>
      <color value="0xFFF4970A"/>
      <metallicID>EVehicleModelColorMetallic_7</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_yellow</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3440150791"/>
      <audioPrefixHash value="0"/>
      <colorName>165 Chrome Gold</colorName>
    </Item>
    <Item>
      <color value="0xFFF4CC45"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_yellow</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_bright</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="1815504495"/>
      <colorName>166 Honey Mustard Yellow</colorName>
    </Item>
    <Item>
      <color value="0xFFDFB4D1"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_light</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="3089268592"/>
      <colorName>167 Max Renda Pink</colorName>
    </Item>
    <Item>
      <color value="0xFF0340BC"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_bright</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="1815504495"/>
      <colorName>168 Grasper Blue</colorName>
    </Item>
    <Item>
      <color value="0xFF13A09F"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_bright</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="1815504495"/>
      <colorName>169 Turquoise</colorName>
    </Item>
    <Item>
      <color value="0xFF140246"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_red</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_dark</audioPrefix>
      <audioColorHash value="1585269136"/>
      <audioPrefixHash value="1169689894"/>
      <colorName>170 Indigo</colorName>
    </Item>
    <Item>
      <color value="0xFF4a350e"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_beige</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="1325014621"/>
      <audioPrefixHash value="0"/>
      <colorName>171 Murky Gold</colorName>
    </Item>
    <Item>
      <color value="0xFF772058"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="0"/>
      <colorName>172 Mulberry Purple</colorName>
    </Item>
    <Item>
      <color value="0xFFb0f40a"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_bright</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="1815504495"/>
      <colorName>173 Acid Green</colorName>
    </Item>
    <Item>
      <color value="0xFFf46c31"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_orange</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_light</audioPrefix>
      <audioColorHash value="2639756769"/>
      <audioPrefixHash value="3089268592"/>
      <colorName>174 Tango Orange</colorName>
    </Item>
    <Item>
      <color value="0xFFF4BF81"/>
      <metallicID>EVehicleModelColorMetallic_3</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_beige</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="1325014621"/>
      <audioPrefixHash value="0"/>
      <colorName>175 Sand Dune</colorName>
    </Item>
    <Item>
      <color value="0xFF17604F"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>176 Mint</colorName>
    </Item>
    <Item>
      <color value="0xFF5AAA9D"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="0"/>
      <colorName>177 Aqua</colorName>
    </Item>
    <Item>
      <color value="0xFF623042"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="0"/>
      <colorName>178 Rose Gold</colorName>
    </Item>
    <Item>
      <color value="0xFF6600a3"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_black</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3850041493"/>
      <audioPrefixHash value="0"/>
      <colorName>179 Searing Purple</colorName>
    </Item>
    <Item>
      <color value="0xFFF4F4AD"/>
      <metallicID>EVehicleModelColorMetallic_normal</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_yellow</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3440150791"/>
      <audioPrefixHash value="0"/>
      <colorName>180 Banana Cream Yellow</colorName>
    </Item>
    <Item>
      <color value="0xFF004D6C"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="0"/>
      <colorName>181 Coastal Blue</colorName>
    </Item>
    <Item>
      <color value="0xFF586757"/>
      <metallicID>EVehicleModelColorMetallic_3</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>182 Lagoon Green</colorName>
    </Item>
    <Item>
      <color value="0xFF147BF5"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="0"/>
      <colorName>183 Aerodrome Blue</colorName>
    </Item>
    <Item>
      <color value="0xFF2F3C3D"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>184 Hill Green</colorName>
    </Item>
    <Item>
      <color value="0xFF90B275"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>185 Meadow Green</colorName>
    </Item>
    <Item>
      <color value="0xFF1F1949"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_dark</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="1169689894"/>
      <colorName>186 Grape Nut Purple</colorName>
    </Item>
    <Item>
      <color value="0xFF6F9C92"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>187 Chum Green</colorName>
    </Item>
    <Item>
      <color value="0xFF2F1520"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_red</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_dark</audioPrefix>
      <audioColorHash value="1585269136"/>
      <audioPrefixHash value="1169689894"/>
      <colorName>188 Yardie Lobo Red</colorName>
    </Item>
    <Item>
      <color value="0xFF466975"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>POLICE_SCANNER_PREFIX_light</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="3089268592"/>
      <colorName>189 Old Fashioned Green</colorName>
    </Item>
    <Item>
      <color value="0xFF240C59"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_black</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3850041493"/>
      <audioPrefixHash value="0"/>
      <colorName>190 Nebula Purple</colorName>
    </Item>
    <Item>
      <color value="0xFF6D371C"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_brown</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2201497177"/>
      <audioPrefixHash value="0"/>
      <colorName>191 Burnt Orange</colorName>
    </Item>
    <Item>
      <color value="0xFFB6843C"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_yellow</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3440150791"/>
      <audioPrefixHash value="0"/>
      <colorName>192 Sand Glow Yellow</colorName>
    </Item>
    <Item>
      <color value="0xFF171020"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_grey</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="807368168"/>
      <audioPrefixHash value="0"/>
      <colorName>193 Born Again Purple</colorName>
    </Item>
    <Item>
      <color value="0xFF032B60"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="0"/>
      <colorName>194 Estrogen Blue</colorName>
    </Item>
    <Item>
      <color value="0xFF431136"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="0"/>
      <colorName>195 Boysenberry Purple</colorName>
    </Item>
    <Item>
      <color value="0xFFF4110A"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>196 Grotti Red</colorName>
    </Item>
    <Item>
      <color value="0xFFC1B060"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_yellow</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3440150791"/>
      <audioPrefixHash value="0"/>
      <colorName>197 Soft Yellow</colorName>
    </Item>
    <Item>
      <color value="0xFF161F2F"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="0"/>
      <colorName>198 Grayish Blue</colorName>
    </Item>
	<Item>
      <color value="0xFF430D00"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_red</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="1585269136"/>
      <audioPrefixHash value="0"/>
      <colorName>199 Fire Red</colorName>
    </Item>
    <Item>
      <color value="0xFFFF4D65"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="0"/>
      <colorName>200 Sherbet Pink</colorName>
    </Item>
    <Item>
      <color value="0xFF971F00"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_orange</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2639756769"/>
      <audioPrefixHash value="0"/>
      <colorName>201 Blood Orange</colorName>
    </Item>
    <Item>
      <color value="0xFF000092"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_blue</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3826758445"/>
      <audioPrefixHash value="0"/>
      <colorName>202 Mariana Blue</colorName>
    </Item>
    <Item>
      <color value="0xFF334026"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>203 Dripleaf Green</colorName>
    </Item>
    <Item>
      <color value="0xFF972A29"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_pink</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2019367074"/>
      <audioPrefixHash value="0"/>
      <colorName>204 Amber Pink</colorName>
    </Item>
    <Item>
      <color value="0xFFCBB928"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_yellow</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="3440150791"/>
      <audioPrefixHash value="0"/>
      <colorName>205 Yellin Yellow</colorName>
    </Item>
	    <Item>
      <color value="0xFFa48fba"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_brown</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="2201497177"/>
      <audioPrefixHash value="0"/>
      <colorName>206 Lavender</colorName>
    </Item>
		    <Item>
      <color value="0xFF243e18"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>207 Sap Green</colorName>
    </Item>
			    <Item>
      <color value="0xFFa6d09c"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>208 Tea Green</colorName>
    </Item>
				    <Item>
      <color value="0xFFb60b24"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_red</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="1585269136"/>
      <audioPrefixHash value="0"/>
      <colorName>209 Sweet Red</colorName>
    </Item>
						    <Item>
      <color value="0xFFf40033"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_red</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="1585269136"/>
      <audioPrefixHash value="0"/>
      <colorName>210 Electric Red</colorName>
    </Item>
						    <Item>
      <color value="0xFF58f467"/>
      <metallicID>EVehicleModelColorMetallic_1</metallicID>
      <audioColor>POLICE_SCANNER_COLOUR_green</audioColor>
      <audioPrefix>none</audioPrefix>
      <audioColorHash value="306110198"/>
      <audioPrefixHash value="0"/>
      <colorName>211 Screamin Green</colorName>
    </Item>