During the week I thought I'd finally get around to find out why my horn didn't work. So I started with a normal check ground wire, check for power, cleaned up ground wire and reattached never got to finish had to leave. I don't think it was related to this brake light issue but the timing was pretty weird and the horn is the only thing that I have worked on since the bright brake light issue began last night. ...took the car out for a cruise and my left brake light now stays on when I turn on my headlights ...brake light works fine without the headlights or parking lights on...but as soon as I turn on my headlights the left brake light stays on ??? At first I started to think bad ground but that really didn't make sense so I thought I'd ask.