Alright folks,
I finally got around to replacing the dash speakers that were squaking in my 1999 9-5.
I bought kicker cs35s
PHP Code:
http://www.crutchfield.com/p_206CSC354/Kicker-43CSC354.html 
after installation, I turn the volume on 1 click and can hear a fair bit of white noise. I have no idea what this is from but i can drown it out by increasing the volume. I am wondering if it is becasue these speakers are coaxial, 4ohm, or maybe the wattage rating is too high on them.

Any experience would be helpful! Thankyou