Does anyone know what this sound is?

So my car radio has been making a random static/crackling noise while I’m driving. It doesn’t happen all the time — just every now and then, and it lasts a second or two. It’s not tied to bumps in the road or volume changes, and the music still plays, but you can hear this quick static noise over it.

I recently installed a new head unit, so I’m not sure if something might be loose or if it’s a wiring issue. Could it be interference, grounding problems, bad solder connections, or a speaker/amp issue?

Anyone had this happen before or know what usually causes this? Any help is appreciated.