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Routing power/ground for amp under each seat

Discussion in 'Audio & Video' started by Corranhorn4406, Dec 28, 2020.

  1. Dec 28, 2020 at 8:41 AM
    #1
    Corranhorn4406

    Corranhorn4406 [OP] New Member

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    I’m putting an amp under each front seat. I’m curious how to route the power/ground from the driver side to the passenger side to connect the second amp from the distribution blocks.
     
  2. Dec 28, 2020 at 8:57 AM
    #2
    Danimal86

    Danimal86 Looks clean even when its dirty!

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    You want to ground each amp individually under each seat. There was a threaded hole under the carpet flap under the seat. Sand away the paint and get a bolt to fit in the threaded hole

    As for the power, i ran a 1/0 from the battery to a distribution block and then a 4ga from the block to the amps. I kept the block under the drivers seat and ran a 4ga under the carpet over the transmission tunnel (under the arm rest) and back down under the carpet to the amp under the passengers seat. Just make sure to keep the power away from any signal wires (rca's & speaker wires) you may also have running under the center console.

    What amps are you installing?
     
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  3. Dec 28, 2020 at 9:07 AM
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    Corranhorn4406

    Corranhorn4406 [OP] New Member

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  4. Dec 28, 2020 at 10:05 AM
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    Danimal86

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    Elduder likes this.
  5. Dec 28, 2020 at 12:15 PM
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    crewmaxlmt

    crewmaxlmt How dare you!

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    Curious, how well is the body grounded to the battery?
     
  6. Dec 28, 2020 at 12:22 PM
    #6
    Corranhorn4406

    Corranhorn4406 [OP] New Member

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    However good it is with stock electrical wiring
     
  7. Dec 28, 2020 at 2:19 PM
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    Elduder

    Elduder New Member

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    @Danimal86 has it pretty well summed up. Ground each to their own ground. Sharing could lead to issues if voltage is trapped in the ground loop from one amp, in that case both would be subject to it. Makes troubleshooting a bit more challenging and you'd end up separating the grounds anyway. 0ga is more than plenty for inlet power, 4ga would work as well, be easier to route and crimp too. Find a distribution block that has separate fuse slots, fuse accordingly to each amp circuit. Fuse the main power line accordingly to the full circuit amperage.
     
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  8. Dec 28, 2020 at 2:44 PM
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    Corranhorn4406

    Corranhorn4406 [OP] New Member

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    Got the fused distribution block. Running sub amp at 60a and the 4 channel at 30a based on my calcs (sub 500 rms, 4 channel 280 rms). 120a inline power fuse on a 4ga ofc knuconcepts kit. Dropping the 4 channel amp to 8 gauge from the distribution block.
     
  9. Dec 28, 2020 at 2:50 PM
    #9
    Danimal86

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    If the infinity amp will accept a 4ga, i would use 4ga to power it. 8 is pretty small.

    Good call on getting OFC
     
  10. Dec 28, 2020 at 3:04 PM
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    Corranhorn4406

    Corranhorn4406 [OP] New Member

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    It calls for ten gauge in manual and based on the knuconcepts gauge chart I’m covered with the 8ga.
     
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  11. Dec 28, 2020 at 5:24 PM
    #11
    Elduder

    Elduder New Member

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    You're fine, the concern would be for it being the bottle neck. Running 30A thru 8ga you'd need to be concerned with the length of the wire before you begin to see a current drop at the amp side. 8ga with a 30A supply is rated to be good for ~50ft before you see a 10% drop in power. Youre talking about running a wire that will probably be 3'-4' long, no worries there.
     

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