theres a list of them. i would just find one with the better reviews . use the search and type in "car" so you get more refined searches related to that. maybe even add a search term with your cars make/model to see if you find any reviews. they are all made in china and many in the same factory so its just trial and error. they are cheap to buy a couple and test them and return the one you dont need.
can you post up the one you ordered?