Thanks for the link! I've googled everything i can think of and never found that. Unfortunately, it doesn't seem to make sense, based on what we've tried in our car. I guess it really just depends on the fit. This sucks! I think I'm just going to have to buy one on Amazon and return it if it doesn't fit.
Any store that has both will give you dimensions of each if you call and you can just order it from whoever helps you.