This business of the remote controls is frustrating. For the 1999 (and maybe other years), you need two things, the physical unit and the programming to make it respond to your car. You can buy a used remote, but then you still have to go to a dealer to have it and your other units programmed to work with your car. Unless you have a good friend at the dealer, I suspect they will charge you for their time. Think of it this way: $15 plus shipping, say $5. Programming might be $50, so you are up to $70 or more. If you buy the remote control from the dealer, they may include the programming as part of the total cost. You had better call your dealer to get prices.