Steering Wheel with mouse drag

What I need is a steering wheel that rotates with the mouse as if the mouse was a hand on the wheel. I got it to work with a top down camera but I need the camera in its standard 0,0,0 rotation. btw the sphere is the mouse

Script:

  public Transform body;
     public string side;
     public Vector3 worldPos;
     public Vector3 startPos;
     public float angleFromStart;
     GameObject cam;
     float mouseX;
     float mouseY;
     float cameraDif;
 
     void Start()
     {
         startPos = transform.position;
         cam = GameObject.FindGameObjectWithTag("MainCamera");
         cameraDif = cam.transform.position.y - transform.position.y;
     }
     void Update()
     {
         mouseX = Input.mousePosition.x;
         mouseY = Input.mousePosition.y;
         worldPos = cam.camera.ScreenToWorldPoint(new Vector3(mouseX, mouseY, cameraDif));
         body.position = worldPos;
 
         if (Vector3.Angle(body.right, startPos - body.position) > 90f) side = "left"; else side = "right";
 
         if (side == "right")
         {
             angleFromStart = Vector3.Angle(body.position - startPos, Vector3.forward) - 360;
             angleFromStart = angleFromStart * -1;
         }
         else
         {
             angleFromStart = Vector3.Angle(body.position - startPos, Vector3.forward);
         }
         transform.eulerAngles = new Vector3(0, angleFromStart, 0);
         Debug.Log(side);
     }