I have a few things to mention about the stock audio. I finally got the nerve to take off the door panels and fix both front speakers (one was totally disconnected and the other had a loose connection). This results in my next few points.
1. The front speakers while small and crappy, can go a nice ways lower than the 6x9's.
2. The stock systems in these cars are pretty bassy for stock crap. (pretty much base model cav, has cd player)
3. Even though not much, I missed the wee little 4x6's.
*2000 Cavalier sedan*