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Thread: Serious buzzing/noise problem, stops when HU is touched...

  1. #1
    Newbie Rover_Eli's Avatar
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    Thumbs down Serious buzzing/noise problem, stops when HU is touched...

    I am having quite a weird problem with buzzing, and that is that it only comes out of the right side speakers, and it stops if I just touch the metal on the HU with my finger. It will re-start randomly, usually when I hit a bump or something like that. There is no buzz when I am listening to a cd or the radio through the HU, it's just when I switch over to AUX to listen to the PC.

    I am running all the power (inverter) down the left side of the car, and the RCA's go AUX in to the HU up the middle of the car, so I don't think that's it.

    Any ideas on - 1. Why is it only the right channel buzzing, and 2. Why does it stop when I touch the HU?

    I am assuming something is screwed up grounding-wise - maybe the HU? Any ideas?

  2. #2
    Top Ramen lgbr's Avatar
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    Does the buzzing occur when the engine is off?
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  3. #3
    Self proclaimed spoon feeder TruckinMP3's Avatar
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    Bad ground and some intermittant short circut.

    Check your ground wires (read up if you need to) and look for any bad insulation on you speaker wires (or other wire)
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  4. #4
    Maximum Bitrate binary.h4x's Avatar
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    yeah, its probably a loose ground that gets knocked around whenever you hit a bump.
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  5. #5
    Newbie Rover_Eli's Avatar
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    Thanks for the help

    Thanks guys - I will check all the grounds - and no the buzzing doesn't happen when the engine is off, nor does it buzz when the inverter is switched off.

    Thanks and I'll update when I find something out.

  6. #6
    Newbie Rover_Eli's Avatar
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    Just an update

    So I finally got a day off to pull out the HU. The culprit was a pinched RCA cable on a steel bracket (going to AUX-in). Apparently I wasn't so 'gentle' when I pushed the HU back in the first time, so it was shorting out randomly, hence the buzz.

    Thanks much guys. Next up - molding the screen into the dash!

    :-)

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