Dam, my old antenna was powered over the coax. That’s probly what did it.

Thanks. Btw i found a DC auto transfer switch on amazon. https://a.co/d/a6pnd9B I assume i wire the car power to the “DC power source” so when it disappears it switches to “battery power” aka solar power. And the load terminal is wired to the DC in port on my bluetti

Good thing i asked the experts. Any i deas for a way to switch to solar power when i turn off the car? Like some form of diy relay switch

Its running off a 5v usb brick. I am trying to alluminate the way to the bathroom for my mom late at night so she won’t trip or kick the household black cat. Also I ordered some PIR motion sensors to turn on the LED strip.

Its a product Safety standard. Here is a Wikipedia page. https://en.m.wikipedia.org/wiki/UL_(safety_organization)