my dealer in charlotte NC said i had to buy all the buttons for A/C controls @ $100.00

Anas, Like I said a little earlier, give these guys a try: IHKAButtons.com. They sell the exact same buttons for US$20 each + S & H. You'll be doing well to buy just one button from anywhere else. Make sure you read the install instructions page as well. It should end up way cheaper as long as you don't require 4 or more. Your dealer is probably talking about buying the whole fascia panel.
Note: If you decide to go the dealer route, don't try and use the actual fascia panel, as that component is a throw away.

Foomph

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