I've got a 200 watt Sony Cd player (dash was alredy sliced so i didn't feel guilty about putting it in
), the Kenwood underdash speakers that the vendors sell which bolt under the dash in the stock location, and kickpanel speaker.
I think the kickpanel speakers suck and are way overpriced, as well as not sounding that great. The kenwood underdash speakers sound pretty good for their size and i would reccomend them, since they are practically invisible and no slicing of anythign is required.
If i were to do it again i would have kept the underdash speakers, but instead of the kickpanel speakers i would have sliced the doors for a pair of 6x9's. Sounds OK, but gets kinda hard to hear over the wind noise and exhaust over 70mph.