So I'm looking intp upgrading to new speakers for my '00 tl, and it seems like component is the way to go...I need a little help though. If I install the midrange woofers in the front doors, do I have to install any new speakers in the rear? Am I supposed to keep the rear speakers hooked up, or do I only need the tweeters and woofers? How does it sound in the backseat with that setup?

I'll also be adding a sub, but not for a little while.