Excellent choice on head unit (stereo). I NEVER had a bad panasonic. First, you MUST realize that you can blow a peaker 2 ways. 1st, by giving it too much power (not your issue as factory speakers can handle ANY deck power you may have (IE 4 x 50 watts etc.)
The 2nd way is by distortion. This is the MOST COMMON reason why speakers blow. You just ccan't play massive amounts of bass from a stereo. Your deck will distort and burn up the voice coil.
So, really anything would work. I sold Cadence (not in active business any more) and I will tell you, they CAN take abuse. UYou can check them out at www.cadencesound.com
I'n not selling, jus recomending! You can check out my rides at http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html
and see what they are. The HURT/OLDS has componenet 51/4's giving they 15 wats RMS to each pair. Also took 1st in sound quality. Also have the sam pair in my van since 199!! Yeah, they last!
Winona Lake, IN