Change cursor on OnTrigger

After trying to solve this and reading about all sorts of codes I now need some help. The goal is to be able to, when inside OnTrigger, hover the cursor over a door and the cursor will change. It should not change when player is outside triggerarea. My issue is to call the OnMouseEnter function while already inside a void. I'm kinda new and still learning.

 public Texture2D cursorTexture;
 
     void OnTriggerStay(Collider other)
     {
         Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         RaycastHit hit;
 
         //hover cursor function
         {
             if (Physics.Raycast(ray, out hit, Mathf.Infinity))
             {
                 if (hit.collider.gameObject == gameObject)
                     
                 {
                     //code for cursor change when hover
                 }
             }
         }
     }
 }

 void OnMouseEnter(){
      Cursor.SetCursor(cursorTexture, Vector2.zero, CursorMode.Auto);
 }
 
 void OnMouseExit(){
      Cursor.SetCursor(null, Vector2.zero, CursorMode.Auto);
 }

Right now I can be on the other side of the room, hover cursor over door, and it will change.