New Head Unit issues

[audiobaun 5,000+ posts]

ok I think I figured it out... I unplugged the rcas and plugged in another set just strung outside the car to the trunk, and there was no buzz or anything, so I assume the issue is interference through the rcas from the power cable that it's ran with

Ya man. It sounds like the RCAs that got damaged would be it. I like to use Stinger 4000-8000 series. Ive have great luck with these. Ive heard people using some from Parts Express with great experiences. I havent tried those. I use whats worked for me and havent changed much to being a stubborn old dog. LOL. You may find better pricing on these series looking and searching on Stinger RCAs.

https://www.sonicelectronix.com/item-38881-Stinger-SI6217.html?utm_source=google&utm_medium=cpc&utm_campaign=PLA&utm_source=google&utm_medium=cpc&utm_campaignid=20151879588&utm_matchtype=&utm_keyword=&utm_device=c&utm_content=&utm_devicemodel=&utm_network=x&utm_loc_physical_ms=9026902&utm_loc_interest_ms=&utm_placement=&utm_adposition=&gclid=CjwKCAjwv8qkBhAnEiwAkY-ahlWh86CnaWR9FsfxBvPY7hFKtNRXty1PV6Span5_0fLZ3sv9iaMkXxoCUIYQAvD_BwE

 

[audiobaun 5,000+ posts]

I believe you found the culprit as well. I had no idea you had some damaged RCAs. Nice testing method used as well. Deff works man
.