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  1. #1

    Default Feedback from subwoofer

    I have 3 12inch kicker L5's with a 1200.1 Kicker amp in a 2004 Tahoe. I am getting alot of feedback it almost sounds like the exhaust coming through the subs while sitting at a stop, but as soon as I take off it goes away. I thought it was the ground at first but I cut a small piece of carpet up and sanded down to bare metal and grounded there. Any suggestions?
    2004 chevy tahoe 35% tint on front windows, 5% tint on the back half ,flowmaster exhaust dumped, Spectre 9900 CAI, 3 12 inch kicker L5's, in-dash DVD/Navigation,kicker 1200.1 amp, removed cargo rack, black headlights lense, black turn signal lense, smoked tail lights, 8000K HID lights.

  2. #2
    Jr. Apprentice
    Join Date
    Oct 2010
    Mckinney, Tx.


    Upgrade your RCA cable!

  3. #3


    I have tried that once before but did not make it ANY better at all

  4. #4


    make sure your ground from amp to frame is less then one foot. Any longer you will have issues with grounding. If the humming goes away with acceleration, it is more then likely engine noise. You have interference somewhere. Double check all your connections. Any bare wires running next to power leads should be shielded.

  5. #5


    I am new to sound systems but one thing I read many times was not to run your power cable next to the RCA cables. I did mine on opposite sides and it sounds great. Don't know if that's your problem but it could. Hope this helps!

    '01 Chevrolet S10
    -custom air intake
    -painted dash
    -footwell lights
    -Strange Performance stickers
    -exhaust coming soon
    -Xplod Head Unit with iPod connectivity
    -12" Sony Xplod woofer
    -Majestic 400 watt amp, bridged

    If at first you don't succeed, then skydiving is not for you.

  6. #6
    Sr. Engineer FergusonT's Avatar
    Join Date
    May 2010
    Southwest Michigan


    Yes, running the RCA cables next to the power or remote wire will possibly cause feedback. You also may want to run more than one ground wire. I haven't been in a situation where I needed to do that personally but I have read threads where guys have had to do that.
    1999 Chevrolet Suburban LS K1500
    1991 Chevrolet S10 4.3L 4x4
    2005 Suzuki Forenza (GM/Daewoo)

  7. #7
    Jr. Mechanic
    Join Date
    Oct 2010
    01832 Massachusetts


    Agreed with the above... I use to do custom installs professionally. One of the first things that was taught to me was run power alone on one side of vehicle and the rca on the other side. Remote power would not cause road noise if that were ran with the rca's... I am willing to bet that those rca's are near some high voltage
    2010 Crew Cab Silverado LT
    Rough Country level kit
    Kenwood DNX5160 (In dash NAV/DVD)
    Kenwood KAC - 8105D (Mono Amp)
    JL Audio 10w3
    Rhino lined
    Rugged Cover
    Undercoated rear wheel wells
    Fully De-badged (except grill)

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