Can't figure out what to do.

[TcAllen247]

Ok, recently acquired a sweet 93 Nissan 300zx. When I grabbed the car up the stereo seamed to work, the guy mentioned that he occasionally had issues with it. Well about two weeks in I noticed a terrible crackling and static noise out of the rear right speaker ever time the car was in gear. Assumed a bad speaker so I started looking into getting new speakers, even went ahead and bought the aftermarket mounts to replace the bose mounts. Also looked into getting a new head unit since mine isn't compatable with Android. Well, today I go to pull out the head unit that is in there and apparently the guy before me never bought the aftermarket harness and did a hack-job splicing of all of the speaker wires running away from the aftermarket harness... it looks like I'm going to have to run all new wire... I've never done this, how difficult of a job is it, and how would I connect the wire I run to the new head unit? Would it just be easier to use the RCA preouts and use a small amp? Please advise.

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[mylows10 5,000+ posts]

you can run all new wires and connect them to the harness.now the question is do you want to amp the speakers or no .if you do then you still need to run wires to the amp ,so in both cases ,it would be better to run new wire then you'll know whats there

 

[goingdef 10+ year member]

if you know what wires are what(and in that car it shouldn't be hard)you don't need the harness all my wires are soldered and covered in heat shrink, find your ground and power wires constant and turn on and illumination and past that it should be speaker wires, but the crackling sounds like a loose connection in the door.

 

[TcAllen247]

Yea, I mean I'm sure I can find the pin layout too, I was just hoping with the pre-out method I could skip that step and go preout->amp->speakers I know I'll still have to run the wires through the car, but it's just two rca cables (front and rear) to the amp, then speaker wire from the amps right? I guess I'm not quite as bothered by running the wires as I am testing the cluster of wires he has (and it is literally a rats nest of like 50 wires, some not terminated) to figure out what is important and what's not. Additionally I've heard the quality out of the pre-outs is usually better, is this true?