I just bought a rockford rfx9300, their mp3 compatible head unit and i'm getting a bunch of different stories about the installation process in my 2001 tl, i asked one best buy and they said i'm gonna need to re wire the speakers, another best buy said i need to replace my speakers, and another audio place told me that i needed some kind of adapter to change it. I just wanted to know if anyone has changed their deck w/o changing their factrory speakers and what your experiances have been.thanx alot