My friend just got a new 2018 F3 Limited. Knowing I'm good at electrical work, he asked me to install a couple of LED light. Looking for a convenient place to put a switch, I decided to pop the small round plastic plug to the right of the ignition to install a mini switch thinking that it was just to cover a hole. Surprise. there was a very small plug with wires attached to the back of it. Look like it was doing nothing. Needless to say, I had to find another location for my switch. So, my question is: What is that plug for? Sorry, I didn't think of taking a picture of it.