Sound system making headlights dim to the bass

[Woodrow]

Has anyone done the big 3 wiring upgrade to the factory alternator to battery positive and grounds to get rid of the headlights dimming to the bass after installing subs and amps to their sound system. I have 2020 ram 2500 6.4 hemi, 5 inch screen. Headlights dim really bad when music is turned up. Thinking of doing the big three upgrade to the factory wires , but definitely do not want to harm the factory wires . I’ve seen some videos on you tube of them just adding the new upgraded wires and leaving factory ones in place but crutchfeild says that in doing this upgrade you are replacing the factory wires altogether. Anyone have any experience with this?

 

[Mopar_maxi]

Add a capacitor to your sound system.

 

[Kevinn]

Yea certainly add a decent capacitor to your setup.

 

[ZombieSlayer]

Anyone done the big 3 yet?

Just wondering what everyone picked to ground? Obviously power from alt to power on battery, negative on battery to a ground point on frame.. but what about the alt ground? Seems the alternator is part of the engine case almost.. i would think its pretty well grounded there.. Alt case bolt to...

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