i just bought a '97 2.2cl and today i replaced the door and rear speakers. how easy is it to remove/replace the tweeters on the dashboard? how can i access them to remove them? also, how are they wired to the factory stereo? are they wired to a crossover box somewhere in the dash, or just directly to the head unit itself?

the stereo sound great with my new speakers, but i'd eventually like to replace the in-dash tweeters and replace the head unit with something more powerful, so i figure a little planning now will help make things easier down the road.