Do volt stabilizers and grounding kits increase the sound quality of your stereo? I’m not talking about loudness…I mean the actual sound quality itself.

 

Grounding kits are a waste IMHO not that some additional grounding won't help. Hyundai uses the body for all the grounds, I tie all the body grounds together and eventually back to the battery negative. Just use simple small wires and crimp on terminals.



No voltage stabilizers is another story. If your voltage is dropping from a big amp then you need to upgrade the wiring to the amp and the grounding too. Or get something like this.....





jacobs accuvolt FR1500

 

I have one on my last three rides I notice little on radio. But notice more on lights.