RSC GP9 headlight textures problem

[Matchstick101]

i've been working on putting together a mix of mods to get the GP9 up to a higher standard. Mainly sound but I also added new physics from the "Soldier Summit Locomotive Physics Mod Pack" that has been the easy part. I'm now running into problems changing the headlight textures. I'm guessing its more then just editing the GP9_Main_Headlight.bin file? that where i started but for some reason it breaks the model ingame to the point where the gp9 is invisible.

so what needs to be done to swap out headlight textures?

[buzz456]

Instead of modifying the head light file go into the engine bin file and put some other headlight that has the properties you are looking for as a substitute.

[Matchstick101]

Instead of modifying the head light file go into the engine bin file and put some other headlight that has the properties you are looking for as a substitute.

just to me sure... these lines correct?
</BlueprintSetID>
<BlueprintID d:type="cDeltaString">RailVehicles\Diesel\GP9\Default\Lights\GP9_Main_Headlight.xml</BlueprintID>
</iBlueprintLibrary-cAbsoluteBlueprintID>

</BlueprintSetID>
<BlueprintID d:type="cDeltaString">RailVehicles\Diesel\GP9\Default\Lights\GP9_Marker_Headlight.xml</BlueprintID>
</iBlueprintLibrary-cAbsoluteBlueprintID>

[buzz456]

I'm sorry are we talking the RSC GP9 or some other one? I can't find those lines in the file.