Originally Posted by Yanner
I did have the a couple of the Polk speakers in the doors before getting anything else hooked up and I can confirm what others have reported: upgraded speakers on the stock head unit and amp brings no improvement (non-Sony 6 speaker stereo).
I've been waiting to see if others can confirm this so thanks for letting us know. Looks like I'll save the stereo work for another time.
How do you like the Polks? I have had quite a few Polk products and I think their bang for the buck is great, but I'd be interested to hear a second opinion from someone who probably is a bit more knowledgeable.