Audio Systems: amp and speaker configuration for maximum sound and quality, chevy mailbu, watts rms


Question
I have a 2004 chevy mailbu. No rca out. I do not know the head unit ratings.

doors have 6" 2 ways.
rear deck has 6x9 2 ways.
trunk has 10" woofers.

i have no clue what any of the following information means but want to give you as much data as i possibly can.

i have 2 amps:

One is a 600 watt with the following ratings. 4/3/2 channel. there is a switch denoting the number of channels.

Power Output...60 watts RMS X 4 channels into 4 ohms.


Additional Power Output...90 watts RMS X 4
channels into 2 ohms.

180 watts RMS x 2 channels (bridged stereo)into 4 ohms.

Dynamic power.....540 wattsX2 (bridged stereo) into 4 ohms.

this amp has pass through rca outputs.

the other amp is 400 watts with the following ratings. 4/3/2 channel with no switch denoting ratings.

60 watts X 4 into 4 ohms.
90 watts X 4 into 2 ohms.

selectable bass bost 0db/6db/12db @ 50hz.

independant front/rear adjustable -12db/oct high low pass crossover, 50hz-300hz.

this amp has rca inputs only.

i need help with the configuration. i do not understand the ratings and need help with what speakers hook up to what amps and what settings i should be using for the level, base as well as all the pass, x over and other features.

I have been assured that the gear i have collected is more than adequate for a clean loud sound with pleanty of thumping base but i just can not come up with a winning combo. i feel pretty lame and hope you can help.  

Answer
You're not lame, at least your question made sence which I cant say for some of the questions I get here!
Unfortunatly this equipment is pretty far from ideal.  To be blatently honest it sounds like stuff that someone wanted to get rid of cuz it's a piece of this and a piece of that with no real correlation.  Sorry to say but I need to be honest you will not have great booming clear sound with this.  But hooked up properly it will be better than factory that's for sure.
Do you have to make use of what we have here or can we get a piece or two of some other stuff?
I would like to know who makes these amps and subs to know if we can trust the wattage ratings you've given me.  sometimes they say they put out a ton of power but they only put out that much right before they burst into flames so it's pointless (just kidding but you get the idea)
You shouldnt use a 4 channel amp for bass, idealy you want a mono 1 channel amp so this I would replace.  I can help you do whatever you want.  I can help you design something with all of this you already have, some of it or all new stuff. it's all up to what you can do and what you want.
To run the amps you really need to change out the cd player in the dash so that you get RCA outputs.  there are ways to integrate amps after factory stereos but they usually sound very poor.  If you can only afford to change one thing, that's what I would pick to go!
If you want to proceed send me a private message with your email so we can chat back and forth better.  I'd be happy to invest as much time as you need and help you create a great setup.