whats up everyone. was looking for some info and came upon this site, so i joined up. I have a 2004 Grand Prix GTP. as far as the stereo is, its just a stock monsoon setup with the 6 disc changer, and XM. i do have some stuff done to the car performance wise, which was my main focus til i grew tired of the radio sounding like junk. so now im looking to upgrade the stereo, so any suggestions, throw them up.