i have a set of bravox carbon fiber comps and a set of coaxials i was thinking bout grabbing another pair of coax's and putting them up front with my comps. i can mount midbass in door and tweeter on a pillar or in kickpod with coax or coax in the door and comp set in the kick panel. (best spot for tweeters? kick or high up on a pillar?) i was planning on running the front comps active but if i can't due to this setup i prob won't care since it'll be easier to do this and prob louder. my main reason for more speakers is i am guessing that i will not be able to hear music over the bass and i would like it somewhat close to balanced (2 18in XXX) i was wondering if it is a dumb idea to put the coaxs with the comps up front? any input on anything would be freakin awsome

Yes, dumb.

If you are already capable of running active why bother with a comp set even? Pick your drivers to fill your needs and it will work out way better. Having any two drivers play the same vocal frequency range is rarely an effective solution.