Stopping the audio when you exit the vehicle

Firstly, sorry for my poor English.
I got a simple enter-exit to vehicle script here. It’s almost fine. When I enter to the car, Audio is starting. But when i exit, audio is still playing even the Car Audio script is stopped. Unity creates new Audio Source orders and I can’t close them automatically.

Here is the code.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityStandardAssets.Vehicles.Car;

public class carManager : MonoBehaviour {

    Material mat;

    public Camera carCam;
    public CarUserControl userCtrl;
    public CarAudio carSound;



    private bool inVeh;
    private GameObject player;

	void Start () {
        userCtrl.enabled = false;
        carCam.enabled = false;
        inVeh = false;
	}
	
	void Update () {
        if (Input.GetKeyDown(KeyCode.E))
        {
            if(inVeh == true)
            {
                vehicleControl(null);
            }
        }
	}

    public void vehicleControl(GameObject playerObj)
    {
        if(inVeh == false)
        {
            player = playerObj;
            carCam.enabled = true;
            userCtrl.enabled = true;
            carSound.enabled = true;        
            player.SetActive(false);
            player.transform.parent = this.transform;

            StartCoroutine(Time(true));
        }
        else
        {
            player.SetActive(true);
            carCam.enabled = false;
            userCtrl.enabled = false;
            carSound.enabled = false;
            player.transform.parent = null;
            player = null;

            StartCoroutine(Time(false));
        }
    }

    private IEnumerator Time(bool inVehicle)
    {
        yield return new WaitForSeconds(1);
        inVeh = inVehicle;
    }
}

var audios = TempPassenger.GetComponent();

use For loop to make them stop or play?