Audio Audio Source problem

It seems I have a problem where two objects each with an audio source are playing both of their sounds only from one of the objects that has one of those audio sources and I can't wrap my mind on how it is happening.
Object 1 where the footsteps is where the audiosource is located

Object 2 where the footsteps is where the audiosource is located

Object 1 script settings( script basically messes with the audio source settings since it seems that changing it through the editor in unity wasn't working not sure why so I did it with code)

Object 2 script settings


code of the said script:



So if I mute the audio source on object 2 absolutely nothing happens in terms of stop hearing the sounds its making, however muting object 1, mutes both sounds. The only explanation I have is that the script is somehow getting the same audio source but shouldn't get component get the audio source within the same object?

 

Extra quick question:
If I want to achieve this lighting effect is it better to add lighting to the prefabs (walls/floor) or add new gameobjects with the light component and move them around?