Thread: Where to ground amp?

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  1. #1 Where to ground amp? 
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    I just bought a 400 watt amp for my 04 Grand Prix GT, and I was wondering if anyone out there knows of a good spot in the trunk to ground it. My amp is closer to the rear seats, and i only have about 2.5 feet of wire
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  2. #2 Re: Where to ground amp? 
    GTX Level Member Bakerdd's Avatar
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    I grounded mine to one of the rear strut bolts
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  3. #3 Re: Where to ground amp? 
    I live here. SlowNA06's Avatar
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    Use a self-tapping screw and bolt it down under the back seat if you like.
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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  4. #4 Re: Where to ground amp? 
    I live here. DirtDog's Avatar
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    Quote Originally Posted by Bakerdd View Post
    I grounded mine to one of the rear strut bolts
    Bingo
    http://www.grandprixforums.net/my-06-gp-gxp-72403.html
    OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>

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  5. #5 Re: Where to ground amp? 
    Turbo is the way to go. BillBoost37's Avatar
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    I'm not an audio guy, for some reason the strut bolt doesn't sit well with me as a good ground. My thought on that is.. struts aren't 100% weatherproof, the bolts corrode, the area inside the car is known to rust and that's not a good long term ground.

    I went to one of the main achors for the back seat. It's interior, clean and always dry there. Plus is was super close to my amp.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  6. #6 Re: Where to ground amp? 
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    the strut tower is a fairly structural point, which makes it a good spot.

    My 05 has 95k w/ 75k spent on michigans salt roads and the last 20k spent in salt air on the beach. No corosion left.

    Sand down your grounding point, bolt it down, and paint it up to seal it. You shouldn't have to worry about rust. it took me a healthy bit of sanding just to get to metal on mine.
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  7. #7 Re: Where to ground amp? 
    GXP Level Member coolone's Avatar
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    Strut bolt works, just make sure where any part of the bolt seats, that there's metal to metal contact. As mentioned, remove the paint there. Use a dialectric grease too on the surface, between bolt and washer, stud, whatever on that point that you ground. If no grease is available, simple petroleum jelly is ok as it will keep out moisture. This and you're good to go!
    : )

    I use dialectric grease on all my grounds and electrical connections under hood, at battery and alt too. Reduces chances for crap faulty grounds. ; )
    Overkill BBC Cam, YT 1.8 RR's, Rhodes Lifters, STGII Heads, GenV, Pacesetters, 3" Exh to Tips, TEP Trans. N*, ID 75# injectors/E85 coming soon
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  8. #8 Re: Where to ground amp? 
    I live here. SlowNA06's Avatar
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    I pour liquid gasket over my grounds. Never have to worry about accidentally getting greasy.
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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  9. #9 Re: Where to ground amp? 
    Turbo is the way to go. BillBoost37's Avatar
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    I don't ground to something my mechanic has to move to replace a strut...or that's been a known source of issues on 97-03's..lol

    It's all good though.. keep taking the easy way out guys.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  10. #10 Re: Where to ground amp? 
    I live here. SlowNA06's Avatar
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    Quote Originally Posted by BillBoost37 View Post
    Your ground is bad and you should feel bad

    Fixt
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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  11. #11 Re: Where to ground amp? 
    GT Level Member maverickdog8's Avatar
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    Negative of the front battery is the only ground I will ever use.

    Do the big 3 then ground to front battery.
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