I have a 05 350Z, Well finally cant take it anymore need to get rid od the back ground noise, I think its bad rca cables and the grounding. I really just want to rewire the hole car, just looks like the shop put the cheapest of cheapest wire they could find. Well i have a pioneer indash Avic-N3 with 2 Hifonics amps 2-Channel for subs & 4 Channles for mids with a Fosgate Capasitor, The Highs front are MB Quarts components and the rear mids are Mb Quarts 6.5
and running 2 10 Punch subs. Well what is the best solution, i really dont want to take to shop again and waste money on a bad job.

What wire should i use for the installation?

Ground, RCA, Speaker wire

 

What type of background noise are you referring to?

A hiss, a whine...be a little more specific.

 

IF you are getting a hiss or a whistle while accelerating (engine noise) the audio shop probably ran your power wires right next to your RCA's when they ran them back to your amps. I usually run them on opposite sides of the car to avoid this. I am only a recreational installer (DIY) but that is what I would look at first. There are alot of knowledgeable guys on here that may know what it is right off the bat with a little more explanation. Hope I was some help.

 

I get a hiss when accelerating and when at idle.

 

Well also i get to radio frequenzy, I think its a bad installation. They are telling me at the shop that the RCA plugs on the AVIC might be bad, but think its the cheap wires they used and the bad ground.

 

also make sure the ground is on the bare metal of the car.

 

where are u going to ground im in the same boat

 

A hiss like radio static, or like a rising and falling whine as you accelerate?

And off what source...CD, radio, iPod?

 

Rising and falling, on all sources.