How to parent object to player prefab in unity Unet networking

I am trying to make a customization system in unity multiplayer.

 [Header("Body Parts")]
     public GameObject Head;
     void Start()
     {
         SetCustomsClient();
     }
     [Client]
     void SetCustomsClient()
     {
         if (!isLocalPlayer)
         {
             return;
         }
         CmdOnSetCustoms();
     }
     public GameObject eye;
     //Server Informed
     [Command]
     void CmdOnSetCustoms()
     {
         RpcSpawnCustoms();
     }
     //Spawns Eye
     [ClientRpc]
     void RpcSpawnCustoms()
     {
         GameObject _eyeInst = Instantiate(eye, transform.position, Quaternion.identity);
         _eyeInst.transform.parent = Head.transform;
     }

this is the script i used for a customization receiver script. It works fine without the

 _eyeInst.transform.parent = Head.transform;

part. I just want to parent the eye to the player's head through the server on this client. Pls help.