A 7 series, I assume that is BMW. BMW uses the Flir PathFindIR camera which is pretty much the latest greatest technology for automotive use. Is a lot smaller unit than the older Raytheon. The Flir has 4x the resolution and 3x the field of view of the Raytheon. Since I can’t seem to post a photo I’ll try and describe my Raytheon installation. Made up a bracket that clamps to the round rods in front of the radiator on the drivers side and bolted the camera adjusters to that. A pair of 1-1/4x1/8” aluminum bars if I remember right. Not very professional looking but it works. Using a Sony headrest monitor on the dash mounted with a Panavise suction cup mount to the windshield. I tried it in the sunvisor position but I’d need upside down bi-focals to see it so that didn’t last long, is now mounted as far forward on the dash as I could get it. Yes, I’m way older than 17. Added a glare shield over it and a piece of red plexiglass to the display a while back. Cuts down on the reflection of the display on the windshield since I have it mounted so far forward. Anyway, as with most cameras, higher is better. It’s way too big to mount to the outside rear view mirror and would look even more like a cop car than it already does if I mounted it on a light bar on the roof. May just keep it behind the grill. I have a while to decide as salt season is almost here and I’ll be swapping it to my winter car soon.