KZ, you either find one in your car that matches it, or somone else finds one in their car that matches your car. There is no other way to get one.
Check your car in all of these places;
Taped to the back side / top of the glove box insert.
Under the front bucket seats in the springs
Inside the bucket seat backs
Under the rear seat bottom
In the rear seat back.
Under the package tray(speaker shelf)
Under the carpet
and then let us know what you found? Hopefully you find at least one for your car and one or two for other's cars.
Barry