where is the original crossover box for tweeters?

as above.

The coop has door speakers and tweeters. where are the crossovers as i am replacing for JBL ones.

Thanks

There aren't any. They have a capacitor on the tweeter itself to filter out the lower frequencies. You're better off rewiring anyway, so you can place the crossovers where you want (dash ends if not too big, or behing the stereo otherwise).

This may be of use.

yea thanks i used that guide to fit the tweeters but just wanted to know the best way to wire it up. i will run new cables from the headunit.

Thanks.