Hi all, I live in Switzerland and have a 2017 Model S 90D. I was intending to fit a BlackVue dashcam but all of the installation videos show you guys plugging in to a 'spare' power connector that is sitting behind the grill in roof above the rear view mirror. Here in Europe, that plug is in use. I believe it is supplying power to a pair of ultrasonic sensors for the alarm (I might be wrong but I think that's what they are). The grill is not a grill but is actually a plate housing the 2 sensors. Has anyone in Europe done a DIY install and found a clean and non-invasive way to get always-on power for a dashcam? I will not be cutting/splicing etc and really don't fancy routing a wire up from miles away if possible.