Using promotional coupon codes on ONLINECARSTEREO.COM is simple.
Just follow these steps:
1) 1) Go to
your shopping cart when you’ve added enough items to meet the requirements for
the coupon (I.E. total dollar amount of your order)
2) 2) Enter
the coupon code in the space provided
3) 3) Click
The discounts will automatically be subtracted from the balance in your cart. You can verify your discount by looking at the line below your order subtotal.