uaz roof

Hi I have been playing with the xml files like putting the maz 535 in the selection list and cart on the Uaz469 but what is the Uaz roof file do as we only have the trunk and spare ?

It's a vehicle, not an addon. Same as the normal UAZ-469 only it's blue and has a Hardtop.

Thanks I am not very good with computers but like making the games more personal with small tweaks
Thanks again.