I stalled an amp and new speakers for my highs. Since I installed it I have been getting feedback through my speakers. The power wire and the rca's are on opposite sides, i moved the ground a couple of times, replaced the amp, changed rca's and I am still getting lots of engine noise. I need some help. What can I do others than getting a noise filter?

 

Are your RCAs insulated? The cheapo insulated RCAs will still have interference bleed over.

 

Yeah they are insulated and I even tried another set that I had laying around. They both sounded the exact same.

 

What size amp and power wire?
Also, check the ground of the head unit. Perhaps something came loose when you were pluggin up the RCA's...

 

I get the noise from time to time.Kinda like every other start up right now.
I find if i mess with my ground wire to my batt it goes away for a little while.
Now i'm trying to find a good place to ground to the top post on the engine for some extra ground to hopefully get rid of it.
Anybody got a good place in mind?

 

If you have a portable CD player or iPod or something plug it directly into the amp and play the music. If there is no noise, plug the HU RCA's back in and plug in the portable where the HU plugs in. If there is still no noise, then the problem is in the HU.

 

If your truck is an ext cab, take the back seat out and put your amp up against the rear wall. I have a 2400 watt Rockford Fosgate amp behind my back seat so I dont think clearance would be an issue. I grounded the amp to the larger bolt in the rear seat. Make sure to take a dremel or something and clean all the paint off the surface you are grounding it to. I had the same problem for a while in my old truck. Do what the last post was talking about and check your head unit too. It sounds like you are having a ground problem for the most part. Make your ground wire as short as possible and use the thickest wires you can use to your amp. It will greatly improve your sound quality