SS CSXT 911'S Square Tag K5LA

you need to have searchlight simulations folder and Nathan Air Chime folder then paste the folder called CSXT 911'S Square Tag K5LA in this directory here RailWorks\Assets\SearchlightSimulations\NathanAirChimeK-series then once you open the folder you may see a file called Class ES44 Horn.proxynml if you have the installment of the CSX ES44AC or Any ES44AC Pruduct
then you just grab that and paste it in this directory RSC\ES44AC_Pack01_CSX_YN3\Audio\RailVehicles\Diesel\ES44\Cab you have then your done but if you don't have the installment of the ES44AC
then you will have to copy the K5LA_HornControl.proxyxml and paste it in the same this directory SearchlightSimulations\NathanAirChimeK-series\ CSXT 911'S Square Tag K5LA then grab the Horn.proxyxml of your locomotive it would start with sd40 horn or es44 horn or Dash8 horn or Dash9 Horn once you find any of the horn.proxyxml just copy the name not the Proxyxml it cold be ES44 horn Dash8 Horn Sd40 Horn or SD70 horn after you have done all that the horn should work enjoy