Like many people here, I don't want to spend $1000's on my setup, but I want something decent. Here is my current problem. I already have this set-up.

Headunit - Kenwood KDC-5019
Front Speakers - Polk EX365
Rear Speakers - Lucid's Polk GXR5

Now I am going to add new tweeters in the exisiting tweeter pods, and possibly a pair behind the seat right next to the center console. I am going with these tweeters.

Tweeters - MB QUART

 

I'm a little confused here. So you already have an aftermarket HU front speakers and rear speakers. Whats wrong with those. Do you still have seperates in the front now??

Are the rear speaker you have now not enough?

 

I want a little more highs. The mids sound good, but it could still use a little more. It is alot better than stock, but still not where I want the quality to be.
The stock tweeters suck IMO, and I want a higher quality. The back tweeters are up in the air. I have looked at some other peoples set-ups, and seen tweeters in the back. Just had my curiosity roused.