Good chassis ground or go to battery?

Hyper1SS · 03-04-2017, 11:59 AM

So for the ones who have added a subwoofer in the trunk what did you do for grounding the amp and did your way work out ok with no noise? I am getting ready to install mine next week and was curious to see what people decided to do. Back in the day with the battery in the engine compartment we did not have a choice but now with the battery in the trunk we do. I decided to go with a Kicker 12" CompR at 2 ohms and a small mono amp to power it. I bought a Kicker preloaded ported box and I had a heck of a time getting it in. Would not fit through the trunk opening so had to feed it through the seat opening sub down and than pull it to the back trunk opening and stand it up before pushing it back where I wanted it. I don't see how some got a bigger box back there with 2 subs!

Darth Martel · 03-04-2017, 03:12 PM

direct to the battery is always best but if you have a good spot that's a chassis ground, that will work just about as well. If you have an ohm meter, check the resistance between the chassis ground and the negative terminal of the battery just to be safe though.

03-04-2017, 11:59 AM	#1
Hyper1SS Drives: 2016 Hyper Blue Metallic 1SS M6 NPP Join Date: Jan 2016 Location: Indiana Posts: 891	Good chassis ground or go to battery? So for the ones who have added a subwoofer in the trunk what did you do for grounding the amp and did your way work out ok with no noise? I am getting ready to install mine next week and was curious to see what people decided to do. Back in the day with the battery in the engine compartment we did not have a choice but now with the battery in the trunk we do. I decided to go with a Kicker 12" CompR at 2 ohms and a small mono amp to power it. I bought a Kicker preloaded ported box and I had a heck of a time getting it in. Would not fit through the trunk opening so had to feed it through the seat opening sub down and than pull it to the back trunk opening and stand it up before pushing it back where I wanted it. I don't see how some got a bigger box back there with 2 subs! Attached Images __________________ 2016 Hyper Blue Metallic 1SS M6 with body color hood vents, Silver broken 5 spoke wheels, NPP dual exhaust, Dark Night Interior Spectrum Lighting, Illuminated door sills plates. Upgrades include: Roto-Fab intake, Mishimoto catch can, MBRP cat-back Race exhaust, TSP 1 7/8 headers, EFI E85 Flex Fuel, MRR M017 graphite wheels with Nitto N555 G2 tires, Goodridge stainless steel brake lines, Powder coated Brembo calipers, BMR suspension, Eibach sport springs, Emblempros fender badges Order ID: TDHQMS 1100 on 01/07/2016 at Penske Chevrolet 6000 on 02/23/2016 Delivered to customer

03-04-2017, 03:12 PM	#2
Darth Martel Darth Martel Drives: Black 1SS with 20% tinted windows Join Date: May 2009 Location: Bizzaroland Posts: 1,495	direct to the battery is always best but if you have a good spot that's a chassis ground, that will work just about as well. If you have an ohm meter, check the resistance between the chassis ground and the negative terminal of the battery just to be safe though. __________________ 2016 Black 1SS w/ MRC, low-gloss black wheels, auto trans. Self-created custom Dark Knight Edition accents. Rotofab CAI with dry filter and sound tube delete, PRAY ported intake manifold and throttle body, Texas Speed cam, Stainless Works headers and exhaust, Skid Mark garage E85 kit, JMS fuel pump voltage booster, Circle D torque converter. Custom E85/mod tune by Jannetty Racing.

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