So I was driving home the other night and I got pulled over for my tail lights not working. They work as brake lights, but when I turn on my headlights the tail lights do not turn on. I recently had an aftermarket hu installed, so I am wondering if there may be a blown fuse? I've looked at them, but I can't seem to find any of them that are blown. Does anyone know which fuse would do that? Or any other reason for this?

 

have you figured the out yet cuz i have the same problem