1) I have JBL GTO605c components speakers that I am looking to replace my factory speakers with. How can I change my factory tweeters (remove and what not) and then use the JBL's tweeters in their place? Don't really want to drill a new hole in my door and like the placement (no matter how unacoustically correct they are) in the upper door. Is this even possible to use the pre-existing location?

2) Where can you come thru the firewall on a 2000 Civic for amplifier wiring (4 ga.). Do I have to drill or is there a unused plug that I can come thru?

Thanks,