[Fairbanks Morse H-16-44] having issue getting the horn to work

[IvanTheRussianDood]

I am having issues getting the horn I've made for my FM H-16-44 to work. The horn is a WABCO E2B1. I have created the horn controller, and horn blueprints within the audio folder and referenced them within the engine blueprint under the children section. I have a functioning horn control button on my HUD which I can click and it responds to said click. However, it will not play any audio when I push the horn button. I used the Davdecoder program to check the dav files to make sure they weren't empty and sure enough they all have sound. Ive been cross referencing the audio controller and engine blueprints sections of the developer docs but I can't figure out where the issue is. If someone more experienced is able to find where the issue is that would be greatly appreciated.

Blueprint xml files below: