06 chevy Silverado v8 crew cab.
I believe I'm looking for component speakers?
Passenger door speaker sounds complete shit with the tiniest bit of bass, you know that feel.

component means separated tweeter and midwoofer.

metra says you have 4 6.5 inch speakers and 2 1 inch tweeters. for simplicity sake you could just unhook the factory tweeters and use coaxials on all 4 doors. if you do that you ensure they all have the same sound characteristics.

how much are you looking to spend?

I'm gonna put a limit around 150

http://www.sonicelectronix.com/item_9111_Polk-Audio-db651.html

2 sets of those would be fine.