If you know which head unit you want, it will tell you whether it is a double din or a single din. BTW, I know Crutchfield has a great name, and this is no diss to them...but I'd say shop around...like Ebay and Amazon. I've seen head units on Ebay and Amazon go for $200 - $400 less than at Crutchfield. If you take your time and get all the right parts, you can self-install it and save even more money.