Need help with a Dodge Charger question.

“Ruin” your wiring? The factory headlight wiring was terrible.

Clearly you’ve never seen @crackedback ’s harnesses. They’re practically artwork, and the relays are a better way to run it.
No kiddin. It's plug and play. Nothing to "ruin". You can uninstall it and never know it was there, although that would be stupid. lol