Assign Select2 values

I have a Select2 that works well to search, the issue is that, once I select the value I was looking for, I need to fill the inputs (not dynamically created) with the information obtained. So far I have not found anything that makes reference to it, the code that I have is very simple.

$("#buscarCliente").select2({
placeholder: "Ingrese el nombre del cliente",
//Does the user have to enter any data before sending the ajax request
minimumInputLength: 0,
allowClear: true,
ajax: {
    //How long the user has to pause their typing before sending the next request
    delay: 150,
    //The url of the json service
    url: '@Url.Action("BuscarCliente", "Clientes")',
    dataType: 'json',
    async: true,
    //Our search term and what page we are on
    data: function (params) {
        return {
            pageSize: 100,
            pageNum: params.page || 1,
            searchTerm: params.term,
            //Value from client side.
            countyId: 'vv'
        };
    },
    processResults: function (data, params) {
        params.page = params.page || 1;
        return {
            results: $.map(data.Results, function (obj)
            {
                return { id: obj.IdCliente, text: obj.RUC + ' - ' + obj.Nombre };
            }),
            pagination: {
                more: (params.page * 100) <= data.Total
            }
        };
    },
    cache: true,
    formatResult: function (data) {
        return data.Results.RUC
    },
    formatSelection: function (data) {
        return obj;
    },
    escapeMarkup: function (m) { return m; },
    dropdownCssClass: "bigdrop"
}
});

And my Controller

[HttpGet]
public ActionResult BuscarCliente(string searchTerm, int pageSize, int pageNum, string countyId)
{
    var ResultQuery = context.Receptores.Where(m => m.Nombre.Contains(searchTerm)).ToList();

    var itemList = new List<Select2Item>();

    foreach (var Receptor in ResultQuery)
    {
        itemList.Add(new Select2Item
        {
            IdCliente = Cliente.Id,
            Nombre= Cliente.Nombre,
            RUC= Cliente.RUC,
            Telefono = Cliente.Telefono,
            Email = Cliente.Email
        });
    }

    //Creating new object for return.
    var result = new
    {
        Total = itemList.Count(),
        Results = itemList.Skip((pageNum * pageSize) - 100).Take(pageSize)
    };

    //Return the data as a json result
    return new JsonResult
    {
        Data = result,
        JsonRequestBehavior = JsonRequestBehavior.AllowGet
    };
}

How to assign the other values to existing inputs with Id?