car audio..... I NEED HELP!

[micro Loopie]

I can wire a car audio system in my sleep and probably be able to explain it over a phone, I'll try and see how well I can type it.

You say you have a nice deck? Good.
You just want sound? Do you care about sound quality, how loud it is? want some bass?

I've seen you're talking about a factory amp, so the speakers probably run on some stupid high impedance(8ohm or more, compared to anything you buy runs 4ohm) you'd most likely be able to get an adapter to plug into the deck and this will bypass it making it seem like the factory amp is getting 8ohms when the deck is really only putting out 4ohms.....but, after you do that you said the factory wiring was all hacked up anyways.

What I would do is just find out what the Impala has for stock speakers, and get aftermarket speakers of that size, if they're 6x7's or 6x8's you could get a plate that's that size and get a 5 1/4 component set (components have a 1" separate tweeter for all your low and lyrics, and the 5 1/4" mid bass) and a 5 1/4 set will probably blow your mind with how crisp they can sound. JL makes nice ones, and I'm actually running 5 1/4 JL VR525 components and they sound NICE!

And, the rears I'd just replace with the 5 1/4 Co-ax(built in tweeter, don't need the two mounting positions) or if you just straight up bought an after market 6x7 or 6x8, get 2 sets, or what ever.

If you're getting components...you'd NEED an amp to power them, for sure. If you're getting run of the mill 6x7's etc. you could get away with just powering them off the deck...but, if you were getting aftermarket stuff like components and what not.....I'd just get a decent 5 channel amp, 2 channels for the front speakers 2 for the rear speakers and 1 for your sub...or if you wouldn't go components, just get a 1 channel amp and run your sub.

Now, the hooking this up.

Pull the deck out, see if RCA's are attached...if there are, then they're the ones dangling in the trunk prolly, check if the wiring harness is hooked up to anything, etc. etc. Is there a BLUE thin wire dangling in the trunk anywhere next to the pos. and negs. ?

To hook up the deck to speakers w/out the factory amping.....On the back of the deck there will be 8 wires. Pink, White, Grey, Green...4 solids, 4 stripes. 1 stripe 1 solid of color = 1 speaker. I can't recall which color is what corner of the car....Google it?

So, just run wires from the deck to each of the doors under the carper, under side panels, etc. solder the wire onto a coat hanger and use that to push the wire through the wiring boot in the door if you're doing it...there, turn the deck on and you have sound.

To run them with an aftermarket amp..do this.

Disregard every wire on the back of the deck except the Black, Red, and Yellow(negative, positive, constant power)..Oh, you'll also need the Blue striped, and the solid blue. Striped blue is the blue one I asked if it was hanging in the trunk if it's not..you'll need to run this to the trunk. the solid blue connects to the wire in the dash that matches it if the car has a power antenna if not, disregard this wire.

After those 4(or 5, depending if you have power antenna) are connected...if you have an RCA plugged in(if you're doing front rear and a sub, you need 3 sets of RCA's) then you just plug that into your amp in the trunk, (on the front, rear, or sub.......and what ever you have it plugged into on the deck that you want it to power) plug the blue wire into the dedicated spot on the amp, put the ground in the amp, then the power.

Now, your speaker wires come off the amp. Same deal, they'll have inputs for the front right, left rear right left, and a sub if it's a 5 channel amp.

Pair this writing with looking at the back of a deck and looking at an amp...there's no way you couldn't hook it up unless you were too lazy to run wiring....which I am a lot of the time.