Before my system consisted of:
Stock Bose Headunit
Stock Bose Door Speakers and Tweeters
2 12" MTX Roadthunders in a sealed box
350w RMS Blaupunkt Amplifer for the subs.
And after:
Clarion VX400 Headunit
4 Kenwood KFC-P709PS Door speakers ( 80w RMS each, 4 Ohm)
2 Kenwood 1" Tweeters mounted in factory tweeter location
SPL GRLA 4 Channel Amp ( 100 RMS X 4 Channels at 4ohm )
2 12" MTX Roadthunders in sealed enclosure
Blaupunkt 2 Channel Amp ( 350w RMS for subs )
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Ok now before in terms of Musical quality and stuff, after i installed my headunit and before also, the system would be playing close to max, id have bass but the stock speakers sucked. On the new Headunit the volume goes up to 40 max and it would be on that and it wouldn't be loud at all, also the clarity sucked and there were no mids because if i turned them up it would distort even more.
Now after tuning my new amp ( still needs a little small fine tuning ),door speakers, and subs and all, and the head unit, it is very loud, almost too loud at the volume of around 25-29 Depending on the song, i still haven't gone up more since i need to break in the speakers.
The mids are amazing, and so are the highs, no distortion whatsoever, clear and crisp sounds, along with clear and crisp bass.
On a 1 to 10 scale, 10 being the best
the bose system gets a -2/10 while the new system gets a 10/10
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These are the products i have used for the WHOLE install ( even though subs have been previously installed )
8 Gauge power wire for Sub amp, 8 gauge Ground wire, EFX RCA Cable, Remote Turn on wire, and 10 Gauge Speaker wire.
4 Gauge Power wire for 4 channel amp, 4 gauge ground wire, 2 Monster RCA Cables, Remote turn on wire, 14 Gauge Speaker wire, 18 Gauge speaker wire to extend the tweeter wires.
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I decided that i would not be removing the stock bose wiring as it looked like just to much of a PITA, and this install took my at least 20 hours working at a slow pace and figuring everything out(where i wanted my amps etc.). I left the original wiring, but i did remove the bose amp in the rear, and the 2 front ones.
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Onto the pictures, they aren't the best, just general shots of what was taken apart, and other things like that. I will post up how everything is now finished probably tomorrow, where i mounted my amps etc.
What i started out with:

onto the install:





stock tweeters




















All in all for everything i have installed for the sound system right now including everything, it cost me about $900, in early 2011, i will be purchasing the navigation module for my Headunit which will add another 80-90$
So in total right below under 1k for all of it.
If you don't need a touchscreen unit, and subwoofers, a normal HU with just door speakers, 4 channel amp, and wiring would have run me around $300 including the same kenwoods i have and the same 4 channel amp, i gave about 70$ for a normal HU should get you a good one.
Questions/Comments/Compliments, whatever, just ask.

