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Thread: Noise coming through speakers - Help Needed

  1. #11
    Variable Bitrate PaCMaYNE's Avatar
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    ok,, i have found in the last week,, the lilli is where the noise is derived from,,,,mostly

    one you shoud ground your vga shielding on your cable,, tot he chassis,, that will eliminate nearly all of the alternator noise,, but most likely afterwards still hear a slight bit of it.....casused from the "egg" theres no way around this,,, i tried capacitors,GLI's ect,, then i grounded AFTER the egg,, and crystal clear 8-)
    throw a moon

    heuvos vin chevos

  2. #12
    Raw Wave tbird2340's Avatar
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    OK... A couple things.. With the Carputer totally off and with no power whatsoever going to it I still get the noise. Does that mean that it's NOT the PC?

    Also, hijinks, do you mean for me to take an O ring and attach it to a MOTHERBOARD screw? Like I said.. I don't have a metal case. Look:





    PaCMaYNE, isn't that dangerous to not use the egg? Isn't it on there to regulate the power going to it? I don't want to be frying my Lilli.

    Thanks for the help.
    Current Vehicle: 2007 Dodge Nitro

    Second Vehicle: Sold it :( 2005 Dodge Ram 1500 Quad Cab

    First Vehicle: 2003 Ford Ranger

  3. #13
    Low Bitrate microbionic's Avatar
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    yes it is dangerouse to not use regulated power, use regulated power, just not from the "egg",

  4. #14
    Raw Wave tbird2340's Avatar
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    Should I hard wire it into the PW70A then?
    Current Vehicle: 2007 Dodge Nitro

    Second Vehicle: Sold it :( 2005 Dodge Ram 1500 Quad Cab

    First Vehicle: 2003 Ford Ranger

  5. #15
    Variable Bitrate no1knows's Avatar
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    yeh, run it off your PSU's 12v rail.
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  6. #16
    Raw Wave tbird2340's Avatar
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    OK.. I just hard wired my Lilli to my PW70A and tossed the Egg. It got rid of A LOT of the noise but at high volumes I still here some. I can here the hard drive when the PC boots up through the speakers.

    I tried attaching an O ring to a wire and attaching that to a screw on my motherboard and then the other end to my grounding point. When I tried booting up after that the PC came on and then immediately shut off. Scared that I jacked something up I removed that ground on the motherboard screw.

    I'm back to still having some noise but not as much.

    Could it have anything to do with my switched wire on my ITPS? I have that hooked up to my blue wire on my HU (remote amp wire).

    Thanks for the help!
    Current Vehicle: 2007 Dodge Nitro

    Second Vehicle: Sold it :( 2005 Dodge Ram 1500 Quad Cab

    First Vehicle: 2003 Ford Ranger

  7. #17
    Variable Bitrate euro320i's Avatar
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    Does your noise rise with your engine RPM? If not it also may be the quality of cable. My noise was a steady brummmm.... It was a cheap pair of RCA cables. Any progress so far?

    o/______\o
    (oo_OO_oo)
    []o-----------o[]
    '94 320i


  8. #18
    Raw Wave tbird2340's Avatar
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    It's so weird... Since I hardwired the Lilli the noise has gotten lower but it's still there. It didn't change with the engine. Yesterday I added a USB Wifi card (along with a USB cable) and now the noise changes with the RPM's. Everything is grounded in one spot. My ground wire is a very thin gauge wire though. It's prolly like 18-24. Do you think that could be it?
    Current Vehicle: 2007 Dodge Nitro

    Second Vehicle: Sold it :( 2005 Dodge Ram 1500 Quad Cab

    First Vehicle: 2003 Ford Ranger

  9. #19
    Jesus Freak antimatter's Avatar
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    Hey man you should really do some reading on engine noise... Just look it up in google. Type in alternator noise or ground loop. Go the the12vlolt.com (<- i think thats right check the techncal website sticky)
    -Jesus- King of Kings Lord of Lords

  10. #20
    Raw Wave tbird2340's Avatar
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    One of the things I read was to run RCA's and your power/ground wires on opposite sides of the vehicle. Since this isn't possible in my truck it also suggested to run them crossing over each other instead of parrallel. I have a question about this though...

    If I ran my RCA's in a piece of PVC would that work in eliminating the problem of running them parrallel. That's the only way I can run them.

    Thanks
    Current Vehicle: 2007 Dodge Nitro

    Second Vehicle: Sold it :( 2005 Dodge Ram 1500 Quad Cab

    First Vehicle: 2003 Ford Ranger

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