Quick question about infinity kappas

Im installing the kappa 4x6's and 6x9's in my friends grand am, and I have two quick questions about it.

First, I know the 4x6's dont use it, but the 6x9's have a crossover. Now do they come with a crossover for both speakers or is it just one for the two (and if so how would i connect that, i know theres connectors for the woofer and tweeter). I havnt had a chance to check if it comes with two because I took them directly to her house.

Second, would there be any clearence problems with the speakers in a 97' grandam?

Thanks in advance.

Connect the mids and the tweets to one crossover... one pair for each crossover.
You should get a 100hz hpf for the 4x6s