Grounding upgrades

[AZ_SS]

Have been searching but wasn't able to find anything here about people upgrading the grounds connections/cables on these trucks. It was basically required on my Trailblazer SS with any kind of stereo mods. I was just curious if anyone was doing it on these trucks.

[AZ_SS]

No one has had problems with the lights dimming when the (upgraded) stereo is banging? If that's the case, good to know it is a non-issue. I just know it was on previous Chevys I've had.

[DonkeyKiller]

My 13's lights would dim really bad but I haven't had any problems at all from my 15.

[rocknfire]

You need a capacitor.

[AZ_SS]

I haven't done any upgrades yet i was wanted to be ahead of the game. I was also told capacitors was kind of old school.

[BassOverflow]

I have the Kicker system (both DSP/amp and sub/amp) and have no issue in my 2015.

[Patrick983]

Common GM problem. Mine were dimming under load stock. I went to 4 gauge wire on the ground going to the body up behind passenger front tire. Added an additional body ground to the fender and don't seem to have anymore issues. I used to be able to sit idle and turn my steering wheel and watch the lights dim.. ..embarrassing on a truck this expensive. But electrical has been GMC weakness for a long time... so I guess I was expecting it. Still love the truck and would rather run a few wires than drive a Ford!! Lol

[AZ_SS]

Thanks, thats exactly what i was talking about. On my SS the kit upgraded the alt wire, the main ground and added an additional ground from the block to the frame. I am looking for the optimal place to add an additional ground.

[AZ_SS]

Common GM problem. Mine were dimming under load stock. I went to 4 gauge wire on the ground going to the body up behind passenger front tire. Added an additional body ground to the fender and don't seem to have anymore issues. I used to be able to sit idle and turn my steering wheel and watch the lights dim.. ..embarrassing on a truck this expensive. But electrical has been GMC weakness for a long time... so I guess I was expecting it. Still love the truck and would rather run a few wires than drive a Ford!! Lol

 

Would you mind posting a pic or describing where you ran your additional ground? Thanks