Werid Humming Noise

Discussion in 'General Car Audio Discussions' started by 99rangerguy, Sep 19, 2009.

  1. 99rangerguy

    99rangerguy New Member

    Today, I spent about 4 hours hooking up new sound in my truck. I previously had a 2 channel amp, and I had my door speakers on it, running to my sony head unit. I got a 4 channel amp in now, with the 2 door speakers to it, and a bridged Pioneer 10' sub.

    I'm pretty sure I hooked everything up properly, but whenever the car is on (the amps on), I get this weird high pitch frequency noise coming through my speakers. Even if the volume is off. Anytime the cd player and amp have power, the sound plays.

    I have a stick shift. Whenever I'm reving up, the noise gets higher pitched. In neutral, it'll die down a bit. It seems like a high pitched buzz is mimicing my engine.

    It's so annoying...anybody have a solution or ever had this before?
     
  2. Lazy Eye

    Lazy Eye Full Member

    Are your power wire, and rca's for your amp running on the same side?
     
  3. 99rangerguy

    99rangerguy New Member

    No, well they were. Whenever I had the 2 channel amp, they all were. This time, they were all on the driver's side. Once I heard the noise, I took the new RCAs I have for the sub, and wired them through the passengers side.
     
  4. Lazy Eye

    Lazy Eye Full Member

    ok, do you have a good ground?
     
  5. 99rangerguy

    99rangerguy New Member

    Hmm, actually I don't know if I do or not. I have it grounded to the same spot, which used to work great. For my new amp, I'm using 8 gauge wire instead of the old 12.

    On the ground wire, they have that metal circle that you're supposed to put on the screw sort of like a washer, right? Well, I that little circle thing broke off, so I wrapped the huge 8 gauge wire around the screw, and put it in. The amp holds power well, but I have this noise.

    Should I put both pairs of RCAs on the passengers side, to get them away from the power? Right now I only have the sub RCAs on the passengers side.
     
  6. Lazy Eye

    Lazy Eye Full Member

    Is the ground on bare metal without any paint?
    and yeah I would move the other set of rca's to the other side also.
     
  7. 99rangerguy

    99rangerguy New Member

    Yeah, I scraped the paint off pretty well. I'm gonna move the other RCA's in the morning, I'll let you know how it goes.

    thanks for the help
     
  8. Lazy Eye

    Lazy Eye Full Member

    Ok, hopefully that fixes the problem.
    good luck